Christian Hopfer, MD

Haberstick BC, Young SE, Zeiger JS, Lessem JM, Hewitt JK, Hopfer CJ. Prevalence and correlates of alcohol and cannabis use disorders in the United States: Results from the national longitudinal study of adolescent health. Drug Alcohol Depend. 2014 Mar 1;136:158-61. PubMed PMID: 24440049

Stephens SH, Hartz SM, Hoft NR, Saccone NL, Corley RC, Hewitt JK, Hopfer CJ, Breslau N, Coon H, Chen X, Ducci F, Dueker N, Franceschini N, Frank J, Han Y, Hansel NN, Jiang C, Korhonen T, Lind PA, Liu J, Lyytikäinen LP, Michel M, Shaffer JR, Short SE, Sun J, Teumer A, Thompson JR, Vogelzangs N, Vink JM, Wenzlaff A, Wheeler W, Yang BZ, Aggen SH, Balmforth AJ, Baumeister SE, Beaty TH, Benjamin DJ, Bergen AW, Broms U, Cesarini D, Chatterjee N, Chen J, Cheng YC, Cichon S, Couper D, Cucca F, Dick D, Foroud T, Furberg H, Giegling I, Gillespie NA, Gu F, Hall AS, Hällfors J, Han S, Hartmann AM, Heikkilä K, Hickie IB, Hottenga JJ, Jousilahti P, Kaakinen M, Kähönen M, Koellinger PD, Kittner S, Konte B, Landi MT, Laatikainen T, Leppert M, Levy SM, Mathias RA, McNeil DW, Medland SE, Montgomery GW, Murray T, Nauck M, North KE, Paré PD, Pergadia M, Ruczinski I, Salomaa V, Viikari J, Willemsen G, Barnes KC, Boerwinkle E, Boomsma DI, Caporaso N, Edenberg HJ, Francks C, Gelernter J, Grabe HJ, Hops H, Jarvelin MR, Johannesson M, Kendler KS, Lehtimäki T, Magnusson PK, Marazita ML, Marchini J, Mitchell BD, Nöthen MM, Penninx BW, Raitakari O, Rietschel M, Rujescu D, Samani NJ, Schwartz AG, Shete S, Spitz M, Swan GE, Völzke H, Veijola J, Wei Q, Amos C, Cannon DS, Grucza R, Hatsukami D, Heath A, Johnson EO, Kaprio J, Madden P, Martin NG, Stevens VL, Weiss RB, Kraft P, Bierut LJ, Ehringer MA. Distinct loci in the CHRNA5/CHRNA3/CHRNB4 gene cluster are associated with onset of regular smoking. Genet Epidemiol. 2013 Dec;37(8):846-59. PubMed PMID: 24186853

Common and drug-specific genetic influences on subjective effects to alcohol, tobacco and marijuana use. Haberstick BC, Zeiger JS, Corley RP, Hopfer CJ, Stallings MC, Rhee SH, Hewitt JK. Addiction. 2011 Jan;106(1):215-24. doi: 10.1111/j.1360-0443.2010.03129.x. Epub 2010 Oct 19.

Thurstone C, Salomonsen-Sautel S, Mikulich-Gilbertson SK, Hartman CA, Sakai JT, Hoffenberg AS, McQueen MB, Min SJ, Crowley TJ, Corley RP, Hewitt JK, Hopfer CJ. Prevalence and predictors of injection drug use and risky sexual behaviors among adolescents in substance treatment. Am J Addict. 2013 Nov-Dec;22(6):558-65. PubMed PMID: 24131163

Rohan H. C. Palmer, Valerie S. Knopik , Soo Hyun Rhee , Christian J. Hopfer , Robin C. Corley , Susan E. Young , Michael C. Stallings , John K. Hewitt Prospective Effects of Adolescent Indicators of Behavioral Disinhibition on DSM-IV Alcohol, Tobacco, and Illicit Drug Dependence in Young Adulthood(In Press) Addictive Behaviors

Palmer RH, Young SE, Corley RP, Hopfer CJ, Stallings MC, Hewitt JK. Stability and change of genetic and environmental effects on the common liability to alcohol, tobacco, and cannabis DSM-IV dependence symptoms. Behav Genet. 2013 Sep;43(5):374-85. PubMed PMID: 23760788

Christie Hartman PhD, Christian Hopfer MD, Robin Corley PhD, John Hewitt PhD, Michael Stallings PhD Using Cloninger's Temperament Scales to Predict Substance-Related Behaviors in Adolescents: A Prospective Longitudinal Study(In Press) American Journal on Addictions

Haberstick BC, Lessem JM, Hewitt JK, Smolen A, Hopfer CJ, Halpern CT, Killeya-Jones LA, Boardman JD, Tabor J, Siegler IC, Williams RB, Mullan Harris K. MAOA genotype, childhood maltreatment, and their interaction in the etiology of adult antisocial behaviors. Biol Psychiatry. 2014 Jan 1;75(1):25-30. PubMed PMID: 23726513

Thurstone C, Salomonsen-Sautel S, Mikulich-Gilbertson SK, Hartman CA, Sakai JT, Hoffenberg AS, McQueen MB, Min S, Crowley TJ, Corley RP, Hewitt JK, Hopfer CJ (in press), Prevalence and predictors of injection drug use among adolescents in substance treatment. Am J Addict

Palmer RH, Knopik VS, Rhee SH, Hopfer CJ, Corley RC, Young SE, Stallings MC, Hewitt JK. Prospective effects of adolescent indicators of behavioral disinhibition on DSM-IV alcohol, tobacco, and illicit drug dependence in young adulthood. Addict Behav. 2013 Sep;38(9):2415-21. PubMed PMID: 23685327

Hopfer C, Salomonsen-Sautel S, Mikulich-Gilbertson S, Min SJ, McQueen M, Crowley T, Young S, Corley R, Sakai J, Thurstone C, Hoffenberg A, Hartman C, Hewitt J. Conduct disorder and initiation of substance use: a prospective longitudinal study. J Am Acad Child Adolesc Psychiatry. 2013 May;52(5):511-518.e4. PubMed PMID: 23622852

Salomonsen-Sautel S, Sakai J, Thurstone C, Corley R, Hopfer CJ (2012), Medical marijuana use among adolescents in substance treatment. J Am Acad Child Adolesc Psychiatry 51:694-702

Hartman C, Hopfer C, Corley R, Hewitt J, Stallings M. Using Cloninger's temperament scales to predict substance-related behaviors in adolescents: a prospective longitudinal study. Am J Addict. 2013 May-Jun;22(3):246-51. PubMed PMID: 23617866

Kamens HM, Corley RP, McQueen MB, Stallings MC, Hopfer CJ, Crowley TJ, Brown SA, Hewitt JK, Ehringer MA. Nominal association with CHRNA4 variants and nicotine dependence. Genes Brain Behav. 2013 Apr;12(3):297-304. PubMed PMID: 23350800

Christian Hopfer, Stacy Salomonsen-Sautel, Susan Mikulich-Gilbertson, Sung-Joon Min, Matt McQueen, Thomas Crowley, Susan Young, Robin Corley, Joseph Sakai, Christian Thurstone, Analice Hoffenberg, Christie Hartman, John Hewitt Conduct Disorder and Initiation of Substance Use: A Prospective Longitudinal Study JAACAP In Press

Derringer J, Corley RP, Haberstick BC, Young SE, Demmitt BA, Howrigan DP, Kirkpatrick RM, Iacono WG, McGue M, Keller MC, Brown S, Tapert S, Hopfer CJ, Stallings MC, Crowley TJ, Rhee SH, Krauter K, Hewitt JK, McQueen MB. Genome-Wide Association Study of Behavioral Disinhibition in a Selected Adolescent Sample. Behav Genet. 2015 Jan 31. [Epub ahead of print] PubMed PMID: 25637581

Kamens HM, Corley RP, McQueen MB, Stallings MC, Hopfer CJ, Crowley TJ, Brown SA, Hewitt JK, Ehringer MA. Nominal association with CHRNA4 variants and nicotine dependence. Genes Brain Behav

Hunter LE, Hopfer C, Terry SF, Coors ME. Reporting actionable research results: shared secrets can save lives. Sci Transl Med. 2012 Jul 18;4(143):

Coors ME, Raymond KM, McWilliams SK, Hopfer CJ, Mikulich-Gilbertson SK. What adolescents enrolled in genomic addiction research want to know about conflicts of interest. Drug Alcohol Depend. 2015 Feb 1;147:272-5. PubMed PMID: 25577477

Hopfer C. Implications of marijuana legalization for adolescent substance use. Subst Abus. 2014;35(4):331-5. PubMed PMID: 25127003

Salomonsen-Sautel S, Min SJ, Sakai JT, Thurstone C, Hopfer C. Trends in fatal motor vehicle crashes before and after marijuana commercialization in Colorado. Drug Alcohol Depend. 2014 Jul 1;140:137-44. PubMed PMID: 24831752

Melroy WE, Stephens SH, Sakai JT, Kamens HM, McQueen MB, Corley RP, Stallings MC, Hopfer CJ, Krauter KS, Brown SA, Hewitt JK, Ehringer MA. Examination of genetic variation in GABRA2 with conduct disorder and alcohol abuse and dependence in a longitudinal study. Behav Genet. 2014 Jul;44(4):356-67. PubMed PMID: 24687270

Hopfer C. Community, siblings, heritability and the risk for drug abuse. Am J Psychiatry. 2014 Feb;171(2):140-1. PubMed PMID: 24500456

Haberstick BC, Lessem JM, Hewitt JK, Smolen A, Hopfer CJ, Halpern CT, Killeya-Jones LA, Boardman JD, Tabor J, Siegler IC, Williams RB, Mullan Harris K. MAOA genotype, childhood maltreatment, and their interaction in the etiology of adult antisocial behaviors. Biol Psychiatry. 2014 Jan 1;75(1):25-30. PubMed PMID: 23726513

El Omari F, Salomonsen-Sautel S, Hoffenberg A, Anderson T, Hopfer C, Toufiq J. Prevalence of substance use among moroccan adolescents and association with academic achievement. World J Psychiatry. 2015 Dec 22;5(4):425-31. PubMed PMID: 26740934

Schwantes-An TH, Zhang J, Chen LS, Hartz SM, Culverhouse RC, Chen X, Coon H, Frank J, Kamens HM, Konte B, Kovanen L, Latvala A, Legrand LN, Maher BS, Melroy WE, Nelson EC, Reid MW, Robinson JD, Shen PH, Yang BZ, Andrews JA, Aveyard P, Beltcheva O, Brown SA, Cannon DS, Cichon S, Corley RP, Dahmen N, Degenhardt L, Foroud T, Gaebel W, Giegling I, Glatt SJ, Grucza RA, Hardin J, Hartmann AM, Heath AC, Herms S, Hodgkinson CA, Hoffmann P, Hops H, Huizinga D, Ising M, Johnson EO, Johnstone E, Kaneva RP, Kendler KS, Kiefer F, Kranzler HR, Krauter KS, Levran O, Lucae S, Lynskey MT, Maier W, Mann K, Martin NG, Mattheisen M, Montgomery GW, Müller-Myhsok B, Murphy MF, Neale MC, Nikolov MA, Nishita D, Nöthen MM, Nurnberger J, Partonen T, Pergadia ML, Reynolds M, Ridinger M, Rose RJ, Rouvinen-Lagerström N, Scherbaum N, Schmäl C, Soyka M, Stallings MC, Steffens M, Treutlein J, Tsuang M, Wall TL, Wodarz N, Yuferov V, Zill P, Bergen AW, Chen J, Cinciripini PM, Edenberg HJ, Ehringer MA, Ferrell RE, Gelernter J, Goldman D, Hewitt JK, Hopfer CJ, Iacono WG, Kaprio J, Kreek MJ, Kremensky IM, Madden PA, McGue M, Munafò MR, Philibert RA, Rietschel M, Roy A, Rujescu D, Saarikoski ST, Swan GE, Todorov AA, Vanyukov MM, Weiss RB, Bierut LJ, Saccone NL. Association of the OPRM1 Variant rs1799971 (A118G) with Non-Specific Liability to Substance Dependence in a Collaborative de novo Meta-Analysis of European-Ancestry Cohorts. Behav Genet. 2015 Sep 21. [Epub ahead of print] PubMed PMID: 26392368

Coors ME, Raymond KM, McWilliams SK, Hopfer CJ, Mikulich-Gilbertson SK. Adolescent perspectives on the return of individual results in genomic addiction research. Psychiatr Genet. 2015 Jun;25(3):127-30. PubMed PMID: 25748091

Derringer J, Corley RP, Haberstick BC, Young SE, Demmitt BA, Howrigan DP, Kirkpatrick RM, Iacono WG, McGue M, Keller MC, Brown S, Tapert S, Hopfer CJ, Stallings MC, Crowley TJ, Rhee SH, Krauter K, Hewitt JK, McQueen MB. Genome-Wide Association Study of Behavioral Disinhibition in a Selected Adolescent Sample. Behav Genet. 2015 Jul;45(4):375-81. PubMed PMID: 25637581

Coors ME, Raymond KM, McWilliams SK, Hopfer CJ, Mikulich-Gilbertson SK. What adolescents enrolled in genomic addiction research want to know about conflicts of interest. Drug Alcohol Depend. 2015 Feb 1;147:272-5. PubMed PMID: 25577477

Melroy-Greif WE, Vadasz C, Kamens HM, McQueen MB, Corley RP, Stallings MC, Hopfer CJ, Krauter KS, Brown SA, Hewitt JK, Ehringer MA. Test for association of common variants in GRM7 with alcohol consumption. Alcohol. 2016 Sep;55:43-50. PubMed PMID: 27788777

Luk JW, Worley MJ, Winiger E, Trim RS, Hopfer CJ, Hewitt JK, Brown SA, Wall TL. Risky driving and sexual behaviors as developmental outcomes of co-occurring substance use and antisocial behavior. Drug Alcohol Depend. 2016 Dec 1;169:19-25. PubMed PMID: 27750183

Hopfer C. Declining Rates of Adolescent Marijuana Use Disorders During the Past Decade May Be Due to Declining Conduct Problems. J Am Acad Child Adolesc Psychiatry. 2016 Jun;55(6):439-40. PubMed PMID: 27238061

Choi TK, Worley MJ, Trim RS, Howard D, Brown SA, Hopfer CJ, Hewitt JK, Wall TL. Effect of adolescent substance use and antisocial behavior on the development of early adulthood depression. Psychiatry Res. 2016 Apr 30;238:143-9. PubMed PMID: 27086224

Kim J, Coors ME, Young SE, Raymond KM, Hopfer CJ, Wall TL, Corley RP, Brown SA, Sakai JT. Cannabis use disorder and male sex predict medical cannabis card status in a sample of high risk adolescents. Drug Alcohol Depend. 2017 Dec 2;183:25-33. [Epub ahead of print] PubMed PMID: 29223914

Al-Tayyib A, Riggs P, Mikulich-Gilbertson S, Hopfer C. Prevalence of Nonmedical Use of Prescription Opioids and Association With Co-occurring Substance Use Disorders Among Adolescents in Substance Use Treatment. J Adolesc Health. 2017 Nov 22. [Epub ahead of print] PubMed PMID: 29174697

Luk JW, Trim RS, Karyadi KA, Curry I, Hopfer CJ, Hewitt JK, Stallings MC, Brown SA, Wall TL. Unique and interactive effects of impulsivity facets on reckless driving and driving under the influence in a high-risk young adult sample. Pers Individ Dif. 2017 Aug 1;114:42-47. PubMed PMID: 29038610

Curry I, Luk JW, Trim RS, Hopfer CJ, Hewitt JK, Stallings MC, Brown SA, Wall TL. Impulsivity Dimensions and Risky Sex Behaviors in an At-Risk Young Adult Sample. Arch Sex Behav. 2017 Sep 7. [Epub ahead of print] PubMed PMID: 28884246

Clark DB, Fisher CB, Bookheimer S, Brown SA, Evans JH, Hopfer C, Hudziak J, Montoya I, Murray M, Pfefferbaum A, Yurgelun-Todd D. Biomedical ethics and clinical oversight in multisite observational neuroimaging studies with children and adolescents: The ABCD experience. Dev Cogn Neurosci. 2017 Jun 28. [Epub ahead of print] PubMed PMID: 28716389

Klawitter J, Sempio C, Mörlein S, De Bloois E, Klepacki J, Henthorn T, Leehey MA, Hoffenberg EJ, Knupp K, Wang GS, Hopfer C, Kinney G, Bowler R, Foreman N, Galinkin J, Christians U, Klawitter J. An Atmospheric Pressure Chemical Ionization MS/MS Assay Using Online Extraction for the Analysis of 11 Cannabinoids and Metabolites in Human Plasma and Urine. Ther Drug Monit. 2017 Oct;39(5):556-564. PubMed PMID: 28640062

Kamens HM, Corley RP, Richmond PA, Darlington TM, Dowell R, Hopfer CJ, Stallings MC, Hewitt JK, Brown SA, Ehringer MA. Evidence for Association Between Low Frequency Variants in CHRNA6/CHRNB3 and Antisocial Drug Dependence. Behav Genet. 2016 Sep;46(5):693-704. PubMed PMID: 27085880

Wills AG, Evans LM, Hopfer C. Phenotypic and Genetic Relationship Between BMI and Drinking in a Sample of UK Adults. Behav Genet. 2017 May;47(3):290-297. PubMed PMID: 28238197

Bartels K, Binswanger IA, Hopfer CJ. Sources of Prescription Opioids for Nonmedical Use. J Addict Med. 2016 Mar-Apr;10(2):134. PubMed PMID: 26985647

Melroy-Greif WE, Vadasz C, Kamens HM, McQueen MB, Corley RP, Stallings MC, Hopfer CJ, Krauter KS, Brown SA, Hewitt JK, Ehringer MA. Test for association of common variants in GRM7 with alcohol consumption. Alcohol. 2016 Sep;55:43-50. PubMed PMID: 27788777

Haberstick BC, Boardman JD, Wagner B, Smolen A, Hewitt JK, Killeya-Jones LA, Tabor J, Halpern CT, Brummett BH, Williams RB, Siegler IC, Hopfer CJ, Mullan Harris K. Depression, Stressful Life Events, and the Impact of Variation in the Serotonin Transporter: Findings from the National Longitudinal Study of Adolescent to Adult Health (Add Health). PLoS One. 2016 Mar 3;11(3):e0148373. PubMed PMID: 26938215

Luk JW, Worley MJ, Winiger E, Trim RS, Hopfer CJ, Hewitt JK, Brown SA, Wall TL. Risky driving and sexual behaviors as developmental outcomes of co-occurring substance use and antisocial behavior. Drug Alcohol Depend. 2016 Dec 1;169:19-25. PubMed PMID: 27750183

Hopfer C. Declining Rates of Adolescent Marijuana Use Disorders During the Past Decade May Be Due to Declining Conduct Problems. J Am Acad Child Adolesc Psychiatry. 2016 Jun;55(6):439-40. PubMed PMID: 27238061

Choi TK, Worley MJ, Trim RS, Howard D, Brown SA, Hopfer CJ, Hewitt JK, Wall TL. Effect of adolescent substance use and antisocial behavior on the development of early adulthood depression. Psychiatry Res. 2016 Apr 30;238:143-149. PubMed PMID: 27086224

Kamens HM, Corley RP, Richmond PA, Darlington TM, Dowell R, Hopfer CJ, Stallings MC, Hewitt JK, Brown SA, Ehringer MA. Evidence for Association Between Low Frequency Variants in CHRNA6/CHRNB3 and Antisocial Drug Dependence. Behav Genet. 2016 Sep;46(5):693-704. PubMed PMID: 27085880

Trim RS, Worley MJ, Wall TL, Hopfer CJ, Crowley TJ, Hewitt JK, Brown SA. Bivariate Trajectories of Substance Use and Antisocial Behavior: Associations with Emerging Adult Outcomes in a High-Risk Sample. Emerg Adulthood. 2015 Aug 1;3(4):265-276. PubMed PMID: 26889401

Walters RK, Polimanti R, Johnson EC, McClintick JN, Adams MJ, Adkins AE, Aliev F, Bacanu SA, Batzler A, Bertelsen S, Biernacka JM, Bigdeli TB, Chen LS, Clarke TK, Chou YL, Degenhardt F, Docherty AR, Edwards AC, Fontanillas P, Foo JC, Fox L, Frank J, Giegling I, Gordon S, Hack LM, Hartmann AM, Hartz SM, Heilmann-Heimbach S, Herms S, Hodgkinson C, Hoffmann P, Jan Hottenga J, Kennedy MA, Alanne-Kinnunen M, Konte B, Lahti J, Lahti-Pulkkinen M, Lai D, Ligthart L, Loukola A, Maher BS, Mbarek H, McIntosh AM, McQueen MB, Meyers JL, Milaneschi Y, Palviainen T, Pearson JF, Peterson RE, Ripatti S, Ryu E, Saccone NL, Salvatore JE, Sanchez-Roige S, Schwandt M, Sherva R, Streit F, Strohmaier J, Thomas N, Wang JC, Webb BT, Wedow R, Wetherill L, Wills AG, Boardman JD, Chen D, Choi DS, Copeland WE, Culverhouse RC, Dahmen N, Degenhardt L, Domingue BW, Elson SL, Frye MA, Gäbel W, Hayward C, Ising M, Keyes M, Kiefer F, Kramer J, Kuperman S, Lucae S, Lynskey MT, Maier W, Mann K, Männistö S, Müller-Myhsok B, Murray AD, Nurnberger JI, Palotie A, Preuss U, Räikkönen K, Reynolds MD, Ridinger M, Scherbaum N, Schuckit MA, Soyka M, Treutlein J, Witt S, Wodarz N, Zill P, Adkins DE, Boden JM, Boomsma DI, Bierut LJ, Brown SA, Bucholz KK, Cichon S, Costello EJ, de Wit H, Diazgranados N, Dick DM, Eriksson JG, Farrer LA, Foroud TM, Gillespie NA, Goate AM, Goldman D, Grucza RA, Hancock DB, Harris KM, Heath AC, Hesselbrock V, Hewitt JK, Hopfer CJ, Horwood J, Iacono W, Johnson EO, Kaprio JA, Karpyak VM, Kendler KS, Kranzler HR, Krauter K, Lichtenstein P, Lind PA, McGue M, MacKillop J, Madden PAF, Maes HH, Magnusson P, Martin NG, Medland SE, Montgomery GW, Nelson EC, Nöthen MM, Palmer AA, Pedersen NL, Penninx BWJH, Porjesz B, Rice JP, Rietschel M, Riley BP, Rose R, Rujescu D, Shen PH, Silberg J, Stallings MC, Tarter RE, Vanyukov MM, Vrieze S, Wall TL, Whitfield JB, Zhao H, Neale BM, Gelernter J, Edenberg HJ, Agrawal A. Transancestral GWAS of alcohol dependence reveals common genetic underpinnings with psychiatric disorders. Nat Neurosci. 2018 Dec;21(12):1656-1669. PubMed PMID: 30482948

Calcaterra SL, Hopfer CJ, Keniston A, Hull ML. Changes in Healthcare Encounter Rates Possibly Related to Cannabis or Alcohol following Legalization of Recreational Marijuana in a Safety-Net Hospital: An Interrupted Time Series Analysis. J Addict Med. 2018 Nov 20. [Epub ahead of print] PubMed PMID: 30475257

Carrico JA, Mahoney K, Raymond KM, Mims L, Smith PC, Sakai JT, Mikulich-Gilbertson SK, Hopfer CJ, Bartels K. The Association of Patient Satisfaction-Based Incentives with Primary Care Physician Opioid Prescribing. J Am Board Fam Med. 2018 Nov-Dec;31(6):941-943. PubMed PMID: 30413550

Border R, Corley RP, Brown SA, Hewitt JK, Hopfer CJ, Stallings MC, Wall TL, Young SE, Rhee SH. Predictors of adult outcomes in clinically- and legally-ascertained youth with externalizing problems. PLoS One. 2018;13(11):e0206442. PubMed PMID: 30383806

Wills AG, Hopfer C. Phenotypic and genetic relationship between BMI and cigarette smoking in a sample of UK adults. Addict Behav. 2019 Feb;89:98-103. PubMed PMID: 30286397

Border R, Corley RP, Brown SA, Hewitt JK, Hopfer CJ, McWilliams SK, Rhea SA, Shriver CL, Stallings MC, Wall TL, Woodward KE, Rhee SH. Independent predictors of mortality in adolescents ascertained for conduct disorder and substance use problems, their siblings and community controls. Addiction. 2018 Nov;113(11):2107-2115. PubMed PMID: 30091161

Hopfer CJ. Links Between Childhood Traits and Adult Criminal Behaviors. J Am Acad Child Adolesc Psychiatry. 2018 Aug;57(8):542-543. PubMed PMID: 30071973

Minica CC, Verweij KJH, van der Most PJ, Mbarek H, Bernard M, van Eijk KR, Lind PA, Liu MZ, Maciejewski DF, Palviainen T, Sánchez-Mora C, Sherva R, Taylor M, Walters RK, Abdellaoui A, Bigdeli TB, Branje SJT, Brown SA, Casas M, Corley RP, Davey-Smith G, Davies GE, Ehli EA, Farrer L, Fedko IO, Garcia-Martínez I, Gordon SD, Hartman CA, Heath AC, Hickie IB, Hickman M, Hopfer CJ, Hottenga JJ, Kahn RS, Kaprio J, Korhonen T, Kranzler HR, Krauter K, van Lier PAC, Madden PAF, Medland SE, Neale MC, Meeus WHJ, Montgomery GW, Nolte IM, Oldehinkel AJ, Pausova Z, Ramos-Quiroga JA, Richarte V, Rose RJ, Shin J, Stallings MC, Wall TL, Ware JJ, Wright MJ, Zhao H, Koot HM, Paus T, Hewitt JK, Ribasés M, Loukola A, Boks MP, Snieder H, Munafò MR, Gelernter J, Boomsma DI, Martin NG, Gillespie NA, Vink JM, Derks EM. Genome-wide association meta-analysis of age at first cannabis use. Addiction. 2018 Nov;113(11):2073-2086. PubMed PMID: 30003630

Curry I, Trim RS, Brown SA, Hopfer CJ, Stallings MC, Wall TL. Positive expectancies mediate the association between sensation seeking and marijuana outcomes in at-risk young adults: A test of the acquired preparedness model. Am J Addict. 2018 Jun 6. [Epub ahead of print] PubMed PMID: 29873863

Bartels K, Mayes LM, Dingmann C, Bullard KJ, Hopfer CJ, Binswanger IA. Opioid Use and Storage Patterns by Patients after Hospital Discharge following Surgery. PLoS One. 2016 Jan 29;11(1):e0147972. PubMed PMID: 26824844

Coors ME, Raymond KM, Hopfer CJ, Sakai J, McWilliams SK, Young S, Mikulich-Gilbertson SK. Adolescents with substance use disorder and assent/consent: Empirical data on understanding biobank risks in genomic research. Drug Alcohol Depend. 2016 Feb 1;159:267-71. PubMed PMID: 26774949

El Omari F, Salomonsen-Sautel S, Hoffenberg A, Anderson T, Hopfer C, Toufiq J. Prevalence of substance use among moroccan adolescents and association with academic achievement. World J Psychiatry. 2015 Dec 22;5(4):425-31. PubMed PMID: 26740934

Schwantes-An TH, Zhang J, Chen LS, Hartz SM, Culverhouse RC, Chen X, Coon H, Frank J, Kamens HM, Konte B, Kovanen L, Latvala A, Legrand LN, Maher BS, Melroy WE, Nelson EC, Reid MW, Robinson JD, Shen PH, Yang BZ, Andrews JA, Aveyard P, Beltcheva O, Brown SA, Cannon DS, Cichon S, Corley RP, Dahmen N, Degenhardt L, Foroud T, Gaebel W, Giegling I, Glatt SJ, Grucza RA, Hardin J, Hartmann AM, Heath AC, Herms S, Hodgkinson CA, Hoffmann P, Hops H, Huizinga D, Ising M, Johnson EO, Johnstone E, Kaneva RP, Kendler KS, Kiefer F, Kranzler HR, Krauter KS, Levran O, Lucae S, Lynskey MT, Maier W, Mann K, Martin NG, Mattheisen M, Montgomery GW, Müller-Myhsok B, Murphy MF, Neale MC, Nikolov MA, Nishita D, Nöthen MM, Nurnberger J, Partonen T, Pergadia ML, Reynolds M, Ridinger M, Rose RJ, Rouvinen-Lagerström N, Scherbaum N, Schmäl C, Soyka M, Stallings MC, Steffens M, Treutlein J, Tsuang M, Wall TL, Wodarz N, Yuferov V, Zill P, Bergen AW, Chen J, Cinciripini PM, Edenberg HJ, Ehringer MA, Ferrell RE, Gelernter J, Goldman D, Hewitt JK, Hopfer CJ, Iacono WG, Kaprio J, Kreek MJ, Kremensky IM, Madden PA, McGue M, Munafò MR, Philibert RA, Rietschel M, Roy A, Rujescu D, Saarikoski ST, Swan GE, Todorov AA, Vanyukov MM, Weiss RB, Bierut LJ, Saccone NL. Association of the OPRM1 Variant rs1799971 (A118G) with Non-Specific Liability to Substance Dependence in a Collaborative de novo Meta-Analysis of European-Ancestry Cohorts. Behav Genet. 2016 Mar;46(2):151-69. PubMed PMID: 26392368

Hoffenberg EJ, McWilliams SK, Mikulich-Gilbertson SK, Murphy BV, Lagueux M, Robbins K, Hoffenberg AS, de Zoeten E, Hopfer CJ. Marijuana Use by Adolescents and Young Adults with Inflammatory Bowel Disease. J Pediatr. 2018 Aug;199:99-105. PubMed PMID: 29673723

Bartels K, Fernandez-Bustamante A, McWilliams SK, Hopfer CJ, Mikulich-Gilbertson SK. Long-term opioid use after inpatient surgery - A retrospective cohort study. Drug Alcohol Depend. 2018 Jun 1;187:61-65. PubMed PMID: 29627407

Kim J, Coors ME, Young SE, Raymond KM, Hopfer CJ, Wall TL, Corley RP, Brown SA, Sakai JT. Cannabis use disorder and male sex predict medical cannabis card status in a sample of high risk adolescents. Drug Alcohol Depend. 2018 Feb 1;183:25-33. PubMed PMID: 29223914

Al-Tayyib A, Riggs P, Mikulich-Gilbertson S, Hopfer C. Prevalence of Nonmedical Use of Prescription Opioids and Association With Co-occurring Substance Use Disorders Among Adolescents in Substance Use Treatment. J Adolesc Health. 2018 Feb;62(2):241-244. PubMed PMID: 29174697

Curry I, Luk JW, Trim RS, Hopfer CJ, Hewitt JK, Stallings MC, Brown SA, Wall TL. Impulsivity Dimensions and Risky Sex Behaviors in an At-Risk Young Adult Sample. Arch Sex Behav. 2018 Feb;47(2):529-536. PubMed PMID: 28884246

Clark DB, Fisher CB, Bookheimer S, Brown SA, Evans JH, Hopfer C, Hudziak J, Montoya I, Murray M, Pfefferbaum A, Yurgelun-Todd D. Biomedical ethics and clinical oversight in multisite observational neuroimaging studies with children and adolescents: The ABCD experience. Dev Cogn Neurosci. 2018 Aug;32:143-154. PubMed PMID: 28716389

Kitzman H, Olds DL, Knudtson MD, Cole R, Anson E, Smith JA, Fishbein D, DiClemente R, Wingood G, Caliendo AM, Hopfer C, Miller T, Conti G. Prenatal and Infancy Nurse Home Visiting and 18-Year Outcomes of a Randomized Trial. Pediatrics. 2019 Dec;144(6). PubMed PMID: 31748254

Olds DL, Kitzman H, Anson E, Smith JA, Knudtson MD, Miller T, Cole R, Hopfer C, Conti G. Prenatal and Infancy Nurse Home Visiting Effects on Mothers: 18-Year Follow-up of a Randomized Trial. Pediatrics. 2019 Dec;144(6). PubMed PMID: 31748253

Ellingson JM, Bidwell LC, Hopfer CJ, Hutchison KE, Bryan AD. Correlates and Potential Confounds of Cannabis Withdrawal Among High-Risk Adolescents. J Stud Alcohol Drugs. 2019 Sep;80(5):557-562. PubMed PMID: 31603758

Hagler DJ Jr, Hatton S, Cornejo MD, Makowski C, Fair DA, Dick AS, Sutherland MT, Casey BJ, Barch DM, Harms MP, Watts R, Bjork JM, Garavan HP, Hilmer L, Pung CJ, Sicat CS, Kuperman J, Bartsch H, Xue F, Heitzeg MM, Laird AR, Trinh TT, Gonzalez R, Tapert SF, Riedel MC, Squeglia LM, Hyde LW, Rosenberg MD, Earl EA, Howlett KD, Baker FC, Soules M, Diaz J, de Leon OR, Thompson WK, Neale MC, Herting M, Sowell ER, Alvarez RP, Hawes SW, Sanchez M, Bodurka J, Breslin FJ, Morris AS, Paulus MP, Simmons WK, Polimeni JR, van der Kouwe A, Nencka AS, Gray KM, Pierpaoli C, Matochik JA, Noronha A, Aklin WM, Conway K, Glantz M, Hoffman E, Little R, Lopez M, Pariyadath V, Weiss SR, Wolff-Hughes DL, DelCarmen-Wiggins R, Feldstein Ewing SW, Miranda-Dominguez O, Nagel BJ, Perrone AJ, Sturgeon DT, Goldstone A, Pfefferbaum A, Pohl KM, Prouty D, Uban K, Bookheimer SY, Dapretto M, Galvan A, Bagot K, Giedd J, Infante MA, Jacobus J, Patrick K, Shilling PD, Desikan R, Li Y, Sugrue L, Banich MT, Friedman N, Hewitt JK, Hopfer C, Sakai J, Tanabe J, Cottler LB, Nixon SJ, Chang L, Cloak C, Ernst T, Reeves G, Kennedy DN, Heeringa S, Peltier S, Schulenberg J, Sripada C, Zucker RA, Iacono WG, Luciana M, Calabro FJ, Clark DB, Lewis DA, Luna B, Schirda C, Brima T, Foxe JJ, Freedman EG, Mruzek DW, Mason MJ, Huber R, McGlade E, Prescot A, Renshaw PF, Yurgelun-Todd DA, Allgaier NA, Dumas JA, Ivanova M, Potter A, Florsheim P, Larson C, Lisdahl K, Charness ME, Fuemmeler B, Hettema JM, Maes HH, Steinberg J, Anokhin AP, Glaser P, Heath AC, Madden PA, Baskin-Sommers A, Constable RT, Grant SJ, Dowling GJ, Brown SA, Jernigan TL, Dale AM. Image processing and analysis methods for the Adolescent Brain Cognitive Development Study. Neuroimage. 2019 Nov 15;202:116091. PubMed PMID: 31415884

Rodriguez CE, Sheeder J, Allshouse AA, Scott S, Wymore E, Hopfer C, Hermesch A, Metz TD. Marijuana use in young mothers and adverse pregnancy outcomes: a retrospective cohort study. BJOG. 2019 Nov;126(12):1491-1497. PubMed PMID: 31334907

Bartels K, Mahoney K, Raymond KM, McWilliams SK, Fernandez-Bustamante A, Schulick R, Hopfer CJ, Mikulich-Gilbertson SK. Opioid and non-opioid utilization at home following gastrointestinal procedures: a prospective cohort study. Surg Endosc. 2019 Apr 3. [Epub ahead of print] PubMed PMID: 30945059

Hoffenberg EJ, McWilliams S, Mikulich-Gilbertson S, Murphy B, Hoffenberg A, Hopfer CJ. Cannabis Oil Use by Adolescents and Young Adults With Inflammatory Bowel Disease. J Pediatr Gastroenterol Nutr. 2019 Mar;68(3):348-352. PubMed PMID: 30801394

Border R, Smolen A, Corley RP, Stallings MC, Brown SA, Conger RD, Derringer J, Donnellan MB, Haberstick BC, Hewitt JK, Hopfer C, Krauter K, McQueen MB, Wall TL, Keller MC, Evans LM. Imputation of behavioral candidate gene repeat variants in 486,551 publicly-available UK Biobank individuals. Eur J Hum Genet. 2019 Jun;27(6):963-969. PubMed PMID: 30723318

Liu M, Jiang Y, Wedow R, Li Y, Brazel DM, Chen F, Datta G, Davila-Velderrain J, McGuire D, Tian C, Zhan X, Choquet H, Docherty AR, Faul JD, Foerster JR, Fritsche LG, Gabrielsen ME, Gordon SD, Haessler J, Hottenga JJ, Huang H, Jang SK, Jansen PR, Ling Y, Mägi R, Matoba N, McMahon G, Mulas A, Orrù V, Palviainen T, Pandit A, Reginsson GW, Skogholt AH, Smith JA, Taylor AE, Turman C, Willemsen G, Young H, Young KA, Zajac GJM, Zhao W, Zhou W, Bjornsdottir G, Boardman JD, Boehnke M, Boomsma DI, Chen C, Cucca F, Davies GE, Eaton CB, Ehringer MA, Esko T, Fiorillo E, Gillespie NA, Gudbjartsson DF, Haller T, Harris KM, Heath AC, Hewitt JK, Hickie IB, Hokanson JE, Hopfer CJ, Hunter DJ, Iacono WG, Johnson EO, Kamatani Y, Kardia SLR, Keller MC, Kellis M, Kooperberg C, Kraft P, Krauter KS, Laakso M, Lind PA, Loukola A, Lutz SM, Madden PAF, Martin NG, McGue M, McQueen MB, Medland SE, Metspalu A, Mohlke KL, Nielsen JB, Okada Y, Peters U, Polderman TJC, Posthuma D, Reiner AP, Rice JP, Rimm E, Rose RJ, Runarsdottir V, Stallings MC, Stancáková A, Stefansson H, Thai KK, Tindle HA, Tyrfingsson T, Wall TL, Weir DR, Weisner C, Whitfield JB, Winsvold BS, Yin J, Zuccolo L, Bierut LJ, Hveem K, Lee JJ, Munafò MR, Saccone NL, Willer CJ, Cornelis MC, David SP, Hinds DA, Jorgenson E, Kaprio J, Stitzel JA, Stefansson K, Thorgeirsson TE, Abecasis G, Liu DJ, Vrieze S. Association studies of up to 1.2 million individuals yield new insights into the genetic etiology of tobacco and alcohol use. Nat Genet. 2019 Feb;51(2):237-244. PubMed PMID: 30643251

Walters RK, Polimanti R, Johnson EC, McClintick JN, Adams MJ, Adkins AE, Aliev F, Bacanu SA, Batzler A, Bertelsen S, Biernacka JM, Bigdeli TB, Chen LS, Clarke TK, Chou YL, Degenhardt F, Docherty AR, Edwards AC, Fontanillas P, Foo JC, Fox L, Frank J, Giegling I, Gordon S, Hack LM, Hartmann AM, Hartz SM, Heilmann-Heimbach S, Herms S, Hodgkinson C, Hoffmann P, Jan Hottenga J, Kennedy MA, Alanne-Kinnunen M, Konte B, Lahti J, Lahti-Pulkkinen M, Lai D, Ligthart L, Loukola A, Maher BS, Mbarek H, McIntosh AM, McQueen MB, Meyers JL, Milaneschi Y, Palviainen T, Pearson JF, Peterson RE, Ripatti S, Ryu E, Saccone NL, Salvatore JE, Sanchez-Roige S, Schwandt M, Sherva R, Streit F, Strohmaier J, Thomas N, Wang JC, Webb BT, Wedow R, Wetherill L, Wills AG, Boardman JD, Chen D, Choi DS, Copeland WE, Culverhouse RC, Dahmen N, Degenhardt L, Domingue BW, Elson SL, Frye MA, Gäbel W, Hayward C, Ising M, Keyes M, Kiefer F, Kramer J, Kuperman S, Lucae S, Lynskey MT, Maier W, Mann K, Männistö S, Müller-Myhsok B, Murray AD, Nurnberger JI, Palotie A, Preuss U, Räikkönen K, Reynolds MD, Ridinger M, Scherbaum N, Schuckit MA, Soyka M, Treutlein J, Witt S, Wodarz N, Zill P, Adkins DE, Boden JM, Boomsma DI, Bierut LJ, Brown SA, Bucholz KK, Cichon S, Costello EJ, de Wit H, Diazgranados N, Dick DM, Eriksson JG, Farrer LA, Foroud TM, Gillespie NA, Goate AM, Goldman D, Grucza RA, Hancock DB, Harris KM, Heath AC, Hesselbrock V, Hewitt JK, Hopfer CJ, Horwood J, Iacono W, Johnson EO, Kaprio JA, Karpyak VM, Kendler KS, Kranzler HR, Krauter K, Lichtenstein P, Lind PA, McGue M, MacKillop J, Madden PAF, Maes HH, Magnusson P, Martin NG, Medland SE, Montgomery GW, Nelson EC, Nöthen MM, Palmer AA, Pedersen NL, Penninx BWJH, Porjesz B, Rice JP, Rietschel M, Riley BP, Rose R, Rujescu D, Shen PH, Silberg J, Stallings MC, Tarter RE, Vanyukov MM, Vrieze S, Wall TL, Whitfield JB, Zhao H, Neale BM, Gelernter J, Edenberg HJ, Agrawal A. Transancestral GWAS of alcohol dependence reveals common genetic underpinnings with psychiatric disorders. Nat Neurosci. 2018 Dec;21(12):1656-1669. PubMed PMID: 30482948

Calcaterra SL, Hopfer CJ, Keniston A, Hull ML. Changes in Healthcare Encounter Rates Possibly Related to Cannabis or Alcohol following Legalization of Recreational Marijuana in a Safety-Net Hospital: An Interrupted Time Series Analysis. J Addict Med. 2019 May Jun;13(3):201-208. PubMed PMID: 30475257

Wills AG, Hopfer C. Phenotypic and genetic relationship between BMI and cigarette smoking in a sample of UK adults. Addict Behav. 2019 Feb;89:98-103. PubMed PMID: 30286397

Johnson EC, Demontis D, Thorgeirsson TE, Walters RK, Polimanti R, Hatoum AS, Sanchez-Roige S, Paul SE, Wendt FR, Clarke TK, Lai D, Reginsson GW, Zhou H, He J, Baranger DAA, Gudbjartsson DF, Wedow R, Adkins DE, Adkins AE, Alexander J, Bacanu SA, Bigdeli TB, Boden J, Brown SA, Bucholz KK, Bybjerg-Grauholm J, Corley RP, Degenhardt L, Dick DM, Domingue BW, Fox L, Goate AM, Gordon SD, Hack LM, Hancock DB, Hartz SM, Hickie IB, Hougaard DM, Krauter K, Lind PA, McClintick JN, McQueen MB, Meyers JL, Montgomery GW, Mors O, Mortensen PB, Nordentoft M, Pearson JF, Peterson RE, Reynolds MD, Rice JP, Runarsdottir V, Saccone NL, Sherva R, Silberg JL, Tarter RE, Tyrfingsson T, Wall TL, Webb BT, Werge T, Wetherill L, Wright MJ, Zellers S, Adams MJ, Bierut LJ, Boardman JD, Copeland WE, Farrer LA, Foroud TM, Gillespie NA, Grucza RA, Harris KM, Heath AC, Hesselbrock V, Hewitt JK, Hopfer CJ, Horwood J, Iacono WG, Johnson EO, Kendler KS, Kennedy MA, Kranzler HR, Madden PAF, Maes HH, Maher BS, Martin NG, McGue M, McIntosh AM, Medland SE, Nelson EC, Porjesz B, Riley BP, Stallings MC, Vanyukov MM, Vrieze S, Davis LK, Bogdan R, Gelernter J, Edenberg HJ, Stefansson K, Børglum AD, Agrawal A. A large-scale genome-wide association study meta-analysis of cannabis use disorder. Lancet Psychiatry. 2020 Oct 20. [Epub ahead of print] PubMed PMID: 33096046

Winiger EA, Ellingson JM, Morrison CL, Corley RP, Pasman JA, Wall TL, Hopfer CJ, Hewitt JK. Sleep Deficits and Cannabis Use Behaviors: An Analysis of Shared Genetics Using Linkage Disequilibrium Score Regression and Polygenic Risk Prediction. Sleep. 2020 Sep 16. [Epub ahead of print] PubMed PMID: 32935850

Ellingson JM, Ross JM, Winiger E, Stallings MC, Corley RP, Friedman NP, Hewitt JK, Tapert SF, Brown SA, Wall TL, Hopfer CJ. Familial factors may not explain the effect of moderate-to-heavy cannabis use on cognitive functioning in adolescents: a sibling-comparison study. Addiction. 2020 Sep 3. [Epub ahead of print] PubMed PMID: 32881239

Polimanti R, Walters RK, Johnson EC, McClintick JN, Adkins AE, Adkins DE, Bacanu SA, Bierut LJ, Bigdeli TB, Brown S, Bucholz KK, Copeland WE, Costello EJ, Degenhardt L, Farrer LA, Foroud TM, Fox L, Goate AM, Grucza R, Hack LM, Hancock DB, Hartz SM, Heath AC, Hewitt JK, Hopfer CJ, Johnson EO, Kendler KS, Kranzler HR, Krauter K, Lai D, Madden PAF, Martin NG, Maes HH, Nelson EC, Peterson RE, Porjesz B, Riley BP, Saccone N, Stallings M, Wall TL, Webb BT, Wetherill L, Edenberg HJ, Agrawal A, Gelernter J. Leveraging genome-wide data to investigate differences between opioid use vs. opioid dependence in 41,176 individuals from the Psychiatric Genomics Consortium. Mol Psychiatry. 2020 Aug;25(8):1673-1687. PubMed PMID: 32099098

Winters DE, Mikulich SK, Hopfer C, Sakai JT. Adolescents in Treatment for Substance Use Disorders: Callous-Unemotional Traits Moderate Associations Between Transdiagnostic Symptoms and Adolescent Suicidality. Child Psychiatry Hum Dev. 2021 Sep 24. [Epub ahead of print] PubMed PMID: 34559328

Wagner NM, Binswanger IA, Shetterly SM, Rinehart DJ, Wain KF, Hopfer C, Glanz JM. Development and validation of a prediction model for opioid use disorder among youth. Drug Alcohol Depend. 2021 Oct 1;227:108980. PubMed PMID: 34482048

Ip HF, van der Laan CM, Krapohl EML, Brikell I, Sánchez-Mora C, Nolte IM, St Pourcain B, Bolhuis K, Palviainen T, Zafarmand H, Colodro-Conde L, Gordon S, Zayats T, Aliev F, Jiang C, Wang CA, Saunders G, Karhunen V, Hammerschlag AR, Adkins DE, Border R, Peterson RE, Prinz JA, Thiering E, Seppälä I, Vilor-Tejedor N, Ahluwalia TS, Day FR, Hottenga JJ, Allegrini AG, Rimfeld K, Chen Q, Lu Y, Martin J, Soler Artigas M, Rovira P, Bosch R, Español G, Ramos Quiroga JA, Neumann A, Ensink J, Grasby K, Morosoli JJ, Tong X, Marrington S, Middeldorp C, Scott JG, Vinkhuyzen A, Shabalin AA, Corley R, Evans LM, Sugden K, Alemany S, Sass L, Vinding R, Ruth K, Tyrrell J, Davies GE, Ehli EA, Hagenbeek FA, De Zeeuw E, Van Beijsterveldt TCEM, Larsson H, Snieder H, Verhulst FC, Amin N, Whipp AM, Korhonen T, Vuoksimaa E, Rose RJ, Uitterlinden AG, Heath AC, Madden P, Haavik J, Harris JR, Helgeland Ø, Johansson S, Knudsen GPS, Njolstad PR, Lu Q, Rodriguez A, Henders AK, Mamun A, Najman JM, Brown S, Hopfer C, Krauter K, Reynolds C, Smolen A, Stallings M, Wadsworth S, Wall TL, Silberg JL, Miller A, Keltikangas-Järvinen L, Hakulinen C, Pulkki-Råback L, Havdahl A, Magnus P, Raitakari OT, Perry JRB, Llop S, Lopez-Espinosa MJ, Bønnelykke K, Bisgaard H, Sunyer J, Lehtimäki T, Arseneault L, Standl M, Heinrich J, Boden J, Pearson J, Horwood LJ, Kennedy M, Poulton R, Eaves LJ, Maes HH, Hewitt J, Copeland WE, Costello EJ, Williams GM, Wray N, Järvelin MR, McGue M, Iacono W, Caspi A, Moffitt TE, Whitehouse A, Pennell CE, Klump KL, Burt SA, Dick DM, Reichborn-Kjennerud T, Martin NG, Medland SE, Vrijkotte T, Kaprio J, Tiemeier H, Davey Smith G, Hartman CA, Oldehinkel AJ, Casas M, Ribasés M, Lichtenstein P, Lundström S, Plomin R, Bartels M, Nivard MG, Boomsma DI. Genetic association study of childhood aggression across raters, instruments, and age. Transl Psychiatry. 2021 Jul 30;11(1):413. PubMed PMID: 34330890

Munn-Chernoff MA, Johnson EC, Chou YL, Coleman JRI, Thornton LM, Walters RK, Yilmaz Z, Baker JH, Hübel C, Gordon S, Medland SE, Watson HJ, Gaspar HA, Bryois J, Hinney A, Leppä VM, Mattheisen M, Ripke S, Yao S, Giusti-Rodríguez P, Hanscombe KB, Adan RAH, Alfredsson L, Ando T, Andreassen OA, Berrettini WH, Boehm I, Boni C, Boraska Perica V, Buehren K, Burghardt R, Cassina M, Cichon S, Clementi M, Cone RD, Courtet P, Crow S, Crowley JJ, Danner UN, Davis OSP, de Zwaan M, Dedoussis G, Degortes D, DeSocio JE, Dick DM, Dikeos D, Dina C, Dmitrzak-Weglarz M, Docampo E, Duncan LE, Egberts K, Ehrlich S, Escaramís G, Esko T, Estivill X, Farmer A, Favaro A, Fernández-Aranda F, Fichter MM, Fischer K, Föcker M, Foretova L, Forstner AJ, Forzan M, Franklin CS, Gallinger S, Giegling I, Giuranna J, Gonidakis F, Gorwood P, Gratacos Mayora M, Guillaume S, Guo Y, Hakonarson H, Hatzikotoulas K, Hauser J, Hebebrand J, Helder SG, Herms S, Herpertz-Dahlmann B, Herzog W, Huckins LM, Hudson JI, Imgart H, Inoko H, Janout V, Jiménez-Murcia S, Julià A, Kalsi G, Kaminská D, Karhunen L, Karwautz A, Kas MJH, Kennedy JL, Keski-Rahkonen A, Kiezebrink K, Kim YR, Klump KL, Knudsen GPS, La Via MC, Le Hellard S, Levitan RD, Li D, Lilenfeld L, Lin BD, Lissowska J, Luykx J, Magistretti PJ, Maj M, Mannik K, Marsal S, Marshall CR, Mattingsdal M, McDevitt S, McGuffin P, Metspalu A, Meulenbelt I, Micali N, Mitchell K, Monteleone AM, Monteleone P, Nacmias B, Navratilova M, Ntalla I, O'Toole JK, Ophoff RA, Padyukov L, Palotie A, Pantel J, Papezova H, Pinto D, Rabionet R, Raevuori A, Ramoz N, Reichborn-Kjennerud T, Ricca V, Ripatti S, Ritschel F, Roberts M, Rotondo A, Rujescu D, Rybakowski F, Santonastaso P, Scherag A, Scherer SW, Schmidt U, Schork NJ, Schosser A, Seitz J, Slachtova L, Slagboom PE, Slof-Op't Landt MCT, Slopien A, Sorbi S, Swiatkowska B, Szatkiewicz JP, Tachmazidou I, Tenconi E, Tortorella A, Tozzi F, Treasure J, Tsitsika A, Tyszkiewicz-Nwafor M, Tziouvas K, van Elburg AA, van Furth EF, Wagner... Shared genetic risk between eating disorder- and substance-use-related phenotypes: Evidence from genome-wide association studies. Addict Biol. 2020 Feb 16;:e12880. [Epub ahead of print] PubMed PMID: 32064741

Hinckley JD, Saba L, Raymond K, Bartels K, Klawitter J, Christians U, Hopfer C. An Approach to Biomarker Discovery of Cannabis Use Utilizing Proteomic, Metabolomic, and Lipidomic Analyses. Cannabis Cannabinoid Res. 2020 Jun 19. [Epub ahead of print] PubMed PMID: 33998853

Johnson EC, Demontis D, Thorgeirsson TE, Walters RK, Polimanti R, Hatoum AS, Sanchez-Roige S, Paul SE, Wendt FR, Clarke TK, Lai D, Reginsson GW, Zhou H, He J, Baranger DAA, Gudbjartsson DF, Wedow R, Adkins DE, Adkins AE, Alexander J, Bacanu SA, Bigdeli TB, Boden J, Brown SA, Bucholz KK, Bybjerg-Grauholm J, Corley RP, Degenhardt L, Dick DM, Domingue BW, Fox L, Goate AM, Gordon SD, Hack LM, Hancock DB, Hartz SM, Hickie IB, Hougaard DM, Krauter K, Lind PA, McClintick JN, McQueen MB, Meyers JL, Montgomery GW, Mors O, Mortensen PB, Nordentoft M, Pearson JF, Peterson RE, Reynolds MD, Rice JP, Runarsdottir V, Saccone NL, Sherva R, Silberg JL, Tarter RE, Tyrfingsson T, Wall TL, Webb BT, Werge T, Wetherill L, Wright MJ, Zellers S, Adams MJ, Bierut LJ, Boardman JD, Copeland WE, Farrer LA, Foroud TM, Gillespie NA, Grucza RA, Harris KM, Heath AC, Hesselbrock V, Hewitt JK, Hopfer CJ, Horwood J, Iacono WG, Johnson EO, Kendler KS, Kennedy MA, Kranzler HR, Madden PAF, Maes HH, Maher BS, Martin NG, McGue M, McIntosh AM, Medland SE, Nelson EC, Porjesz B, Riley BP, Stallings MC, Vanyukov MM, Vrieze S, Davis LK, Bogdan R, Gelernter J, Edenberg HJ, Stefansson K, Børglum AD, Agrawal A. A large-scale genome-wide association study meta-analysis of cannabis use disorder. Lancet Psychiatry. 2020 Dec;7(12):1032-1045. PubMed PMID: 33096046

Winiger EA, Ellingson JM, Morrison CL, Corley RP, Pasman JA, Wall TL, Hopfer CJ, Hewitt JK. Sleep deficits and cannabis use behaviors: an analysis of shared genetics using linkage disequilibrium score regression and polygenic risk prediction. Sleep. 2021 Mar 12;44(3). PubMed PMID: 32935850

Ellingson JM, Ross JM, Winiger E, Stallings MC, Corley RP, Friedman NP, Hewitt JK, Tapert SF, Brown SA, Wall TL, Hopfer CJ. Familial factors may not explain the effect of moderate-to-heavy cannabis use on cognitive functioning in adolescents: a sibling-comparison study. Addiction. 2021 Apr;116(4):833-844. PubMed PMID: 32881239

Munn-Chernoff MA, Johnson EC, Chou YL, Coleman JRI, Thornton LM, Walters RK, Yilmaz Z, Baker JH, Hübel C, Gordon S, Medland SE, Watson HJ, Gaspar HA, Bryois J, Hinney A, Leppä VM, Mattheisen M, Ripke S, Yao S, Giusti-Rodríguez P, Hanscombe KB, Adan RAH, Alfredsson L, Ando T, Andreassen OA, Berrettini WH, Boehm I, Boni C, Boraska Perica V, Buehren K, Burghardt R, Cassina M, Cichon S, Clementi M, Cone RD, Courtet P, Crow S, Crowley JJ, Danner UN, Davis OSP, de Zwaan M, Dedoussis G, Degortes D, DeSocio JE, Dick DM, Dikeos D, Dina C, Dmitrzak-Weglarz M, Docampo E, Duncan LE, Egberts K, Ehrlich S, Escaramís G, Esko T, Estivill X, Farmer A, Favaro A, Fernández-Aranda F, Fichter MM, Fischer K, Föcker M, Foretova L, Forstner AJ, Forzan M, Franklin CS, Gallinger S, Giegling I, Giuranna J, Gonidakis F, Gorwood P, Gratacos Mayora M, Guillaume S, Guo Y, Hakonarson H, Hatzikotoulas K, Hauser J, Hebebrand J, Helder SG, Herms S, Herpertz-Dahlmann B, Herzog W, Huckins LM, Hudson JI, Imgart H, Inoko H, Janout V, Jiménez-Murcia S, Julià A, Kalsi G, Kaminská D, Karhunen L, Karwautz A, Kas MJH, Kennedy JL, Keski-Rahkonen A, Kiezebrink K, Kim YR, Klump KL, Knudsen GPS, La Via MC, Le Hellard S, Levitan RD, Li D, Lilenfeld L, Lin BD, Lissowska J, Luykx J, Magistretti PJ, Maj M, Mannik K, Marsal S, Marshall CR, Mattingsdal M, McDevitt S, McGuffin P, Metspalu A, Meulenbelt I, Micali N, Mitchell K, Monteleone AM, Monteleone P, Nacmias B, Navratilova M, Ntalla I, O'Toole JK, Ophoff RA, Padyukov L, Palotie A, Pantel J, Papezova H, Pinto D, Rabionet R, Raevuori A, Ramoz N, Reichborn-Kjennerud T, Ricca V, Ripatti S, Ritschel F, Roberts M, Rotondo A, Rujescu D, Rybakowski F, Santonastaso P, Scherag A, Scherer SW, Schmidt U, Schork NJ, Schosser A, Seitz J, Slachtova L, Slagboom PE, Slof-Op't Landt MCT, Slopien A, Sorbi S, Swiatkowska B, Szatkiewicz JP, Tachmazidou I, Tenconi E, Tortorella A, Tozzi F, Treasure J, Tsitsika A, Tyszkiewicz-Nwafor M, Tziouvas K, van Elburg AA, van Furth EF, Wagner... Shared genetic risk between eating disorder- and substance-use-related phenotypes: Evidence from genome-wide association studies. Addict Biol. 2021 Jan;26(1):e12880. PubMed PMID: 32064741

Zellers SM, Corley R, Thibodeau E, Kirkpatrick R, Elkins I, Iacono WG, Hopfer C, Hewitt JK, McGue M, Vrieze S. Adolescent Externalizing Psychopathology and Its Prospective Relationship to Marijuana Use Development from Age 14 to 30: Replication Across Independent Longitudinal Twin Samples. Behav Genet. 2020 May;50(3):139-151. PubMed PMID: 32036544

Calcaterra SL, Cunningham CO, Hopfer CJ. The Void in Clinician Counseling of Cannabis Use. J Gen Intern Med. 2020 Jun;35(6):1875-1878. PubMed PMID: 31898125

Cannabis and Cannabinoid Research Ahead of Print An Approach to Biomarker Discovery of Cannabis Use Utilizing Proteomic, Metabolomic, and Lipidomic Analyses Jesse D. Hinckley, Laura Saba, Kristen Raymond, Karsten Bartels, Jost Klawitter, Uwe Christians, and Christian Hopfer Published Online:19 Jun 2020https://doi.org/10.1089/can.2020.0002

Calcaterra SL, Cunningham CO, Hopfer CJ. The Void in Clinician Counseling of Cannabis Use. J Gen Intern Med. 2020 Jun;35(6):1875-1878. PubMed PMID: 31898125

Ross JM, Ellingson JM, Frieser MJ, Corley RC, Hopfer CJ, Stallings MC, Wadsworth SJ, Reynolds CA, Hewitt JK. The effects of cannabis use on physical health: A co-twin control study. Drug Alcohol Depend. 2021 Nov 27;230:109200. [Epub ahead of print] PubMed PMID: 34871975

Zellers SM, Ross JM, Saunders GRB, Ellingson JM, Anderson JE, Corley RP, Iacono W, Hewitt JK, Hopfer CJ, McGue MK, Vrieze S. Impacts of recreational cannabis legalization on cannabis use: a longitudinal discordant twin study. Addiction. 2022 Aug 24. [Epub ahead of print] PubMed PMID: 36002928

Ellingson JM, Hinckley JD, Ross JM, Schacht JP, Bidwell LC, Bryan AD, Hopfer CJ, Riggs P, Hutchison KE. The Neurocognitive Effects of Cannabis Across the Lifespan. Curr Behav Neurosci Rep. 2021 Dec;8(4):124-133. PubMed PMID: 35979200

Hinckley J, Bhatia D, Ellingson J, Molinero K, Hopfer C. The impact of recreational cannabis legalization on youth: the Colorado experience. Eur Child Adolesc Psychiatry. 2022 Apr 15. [Epub ahead of print] PubMed PMID: 35428897

Jami ES, Hammerschlag AR, Ip HF, Allegrini AG, Benyamin B, Border R, Diemer EW, Jiang C, Karhunen V, Lu Y, Lu Q, Mallard TT, Mishra PP, Nolte IM, Palviainen T, Peterson RE, Sallis HM, Shabalin AA, Tate AE, Thiering E, Vilor-Tejedor N, Wang C, Zhou A, Adkins DE, Alemany S, Ask H, Chen Q, Corley RP, Ehli EA, Evans LM, Havdahl A, Hagenbeek FA, Hakulinen C, Henders AK, Hottenga JJ, Korhonen T, Mamun A, Marrington S, Neumann A, Rimfeld K, Rivadeneira F, Silberg JL, van Beijsterveldt CE, Vuoksimaa E, Whipp AM, Tong X, Andreassen OA, Boomsma DI, Brown SA, Burt SA, Copeland W, Dick DM, Harden KP, Harris KM, Hartman CA, Heinrich J, Hewitt JK, Hopfer C, Hypponen E, Jarvelin MR, Kaprio J, Keltikangas-Järvinen L, Klump KL, Krauter K, Kuja-Halkola R, Larsson H, Lehtimäki T, Lichtenstein P, Lundström S, Maes HH, Magnus P, Munafò MR, Najman JM, Njølstad PR, Oldehinkel AJ, Pennell CE, Plomin R, Reichborn-Kjennerud T, Reynolds C, Rose RJ, Smolen A, Snieder H, Stallings M, Standl M, Sunyer J, Tiemeier H, Wadsworth SJ, Wall TL, Whitehouse AJO, Williams GM, Ystrøm E, Nivard MG, Bartels M, Middeldorp CM. Genome-wide Association Meta-analysis of Childhood and Adolescent Internalizing Symptoms. J Am Acad Child Adolesc Psychiatry. 2022 Jul;61(7):934-945. PubMed PMID: 35378236

Kent KR, Hopfer CJ, Corley RP, Stallings MC. Executive functions as a mediator of childhood maltreatment on adult psychopathology: A longitudinal mediation analysis comparing maltreatment factor models. Child Abuse Negl. 2022 Jan;123:105369. PubMed PMID: 34883422

Ross JM, Ellingson JM, Frieser MJ, Corley RC, Hopfer CJ, Stallings MC, Wadsworth SJ, Reynolds CA, Hewitt JK. The effects of cannabis use on physical health: A co-twin control study. Drug Alcohol Depend. 2022 Jan 1;230:109200. PubMed PMID: 34871975

Winters DE, Mikulich SK, Hopfer C, Sakai JT. Adolescents in Treatment for Substance Use Disorders: Callous-Unemotional Traits Moderate Associations Between Transdiagnostic Symptoms and Adolescent Suicidality. Child Psychiatry Hum Dev. 2021 Sep 24. [Epub ahead of print] PubMed PMID: 34559328

Gresko SA, Rieselbach M, Corley RP, Hopfer CJ, Stallings MC, Hewitt JK, Rhee SH. Subjective effects as predictors of substance use disorders in a clinical sample: A longitudinal study. Drug Alcohol Depend. 2023 Aug 1;249:110822. PubMed PMID: 37331303

Ross JM, Karoly HC, Zellers SM, Ellingson JM, Corley RP, Iacono WG, Hewitt JK, McGue M, Vrieze S, Hopfer CJ. Evaluating substance use outcomes of recreational cannabis legalization using a unique co-twin control design. Am J Drug Alcohol Abuse. 2023 Jun 1;:1-10. [Epub ahead of print] PubMed PMID: 37262386

Zellers SM, Ross JM, Saunders GRB, Ellingson JM, Walvig T, Anderson JE, Corley RP, Iacono W, Hewitt JK, Hopfer CJ, McGue MK, Vrieze S. Recreational cannabis legalization has had limited effects on a wide range of adult psychiatric and psychosocial outcomes. Psychol Med. 2023 Jan 5;53(14):1-10. [Epub ahead of print] PubMed PMID: 36601811

Saunders GRB, Wang X, Chen F, Jang SK, Liu M, Wang C, Gao S, Jiang Y, Khunsriraksakul C, Otto JM, Addison C, Akiyama M, Albert CM, Aliev F, Alonso A, Arnett DK, Ashley-Koch AE, Ashrani AA, Barnes KC, Barr RG, Bartz TM, Becker DM, Bielak LF, Benjamin EJ, Bis JC, Bjornsdottir G, Blangero J, Bleecker ER, Boardman JD, Boerwinkle E, Boomsma DI, Boorgula MP, Bowden DW, Brody JA, Cade BE, Chasman DI, Chavan S, Chen YI, Chen Z, Cheng I, Cho MH, Choquet H, Cole JW, Cornelis MC, Cucca F, Curran JE, de Andrade M, Dick DM, Docherty AR, Duggirala R, Eaton CB, Ehringer MA, Esko T, Faul JD, Silva LF, Fiorillo E, Fornage M, Freedman BI, Gabrielsen ME, Garrett ME, Gharib SA, Gieger C, Gillespie N, Glahn DC, Gordon SD, Gu CC, Gu D, Gudbjartsson DF, Guo X, Haessler J, Hall ME, Haller T, Harris KM, He J, Herd P, Hewitt JK, Hickie I, Hidalgo B, Hokanson JE, Hopfer C, Hottenga J, Hou L, Huang H, Hung YJ, Hunter DJ, Hveem K, Hwang SJ, Hwu CM, Iacono W, Irvin MR, Jee YH, Johnson EO, Joo YY, Jorgenson E, Justice AE, Kamatani Y, Kaplan RC, Kaprio J, Kardia SLR, Keller MC, Kelly TN, Kooperberg C, Korhonen T, Kraft P, Krauter K, Kuusisto J, Laakso M, Lasky-Su J, Lee WJ, Lee JJ, Levy D, Li L, Li K, Li Y, Lin K, Lind PA, Liu C, Lloyd-Jones DM, Lutz SM, Ma J, Mägi R, Manichaikul A, Martin NG, Mathur R, Matoba N, McArdle PF, McGue M, McQueen MB, Medland SE, Metspalu A, Meyers DA, Millwood IY, Mitchell BD, Mohlke KL, Moll M, Montasser ME, Morrison AC, Mulas A, Nielsen JB, North KE, Oelsner EC, Okada Y, Orrù V, Palmer ND, Palviainen T, Pandit A, Park SL, Peters U, Peters A, Peyser PA, Polderman TJC, Rafaels N, Redline S, Reed RM, Reiner AP, Rice JP, Rich SS, Richmond NE, Roan C, Rotter JI, Rueschman MN, Runarsdottir V, Saccone NL, Schwartz DA, Shadyab AH, Shi J, Shringarpure SS, Sicinski K, Skogholt AH, Smith JA, Smith NL, Sotoodehnia N, Stallings MC, Stefansson H, Stefansson K, Stitzel JA, Sun X, Syed M, Tal-Singer R, Taylor AE, Taylor KD, Telen MJ, Thai KK, Tiwari H, Turman C, Tyrfingsson T, ... Genetic diversity fuels gene discovery for tobacco and alcohol use. Nature. 2022 Dec 7. [Epub ahead of print] PubMed PMID: 36477530

Saunders GRB, Wang X, Chen F, Jang SK, Liu M, Wang C, Gao S, Jiang Y, Khunsriraksakul C, Otto JM, Addison C, Akiyama M, Albert CM, Aliev F, Alonso A, Arnett DK, Ashley-Koch AE, Ashrani AA, Barnes KC, Barr RG, Bartz TM, Becker DM, Bielak LF, Benjamin EJ, Bis JC, Bjornsdottir G, Blangero J, Bleecker ER, Boardman JD, Boerwinkle E, Boomsma DI, Boorgula MP, Bowden DW, Brody JA, Cade BE, Chasman DI, Chavan S, Chen YI, Chen Z, Cheng I, Cho MH, Choquet H, Cole JW, Cornelis MC, Cucca F, Curran JE, de Andrade M, Dick DM, Docherty AR, Duggirala R, Eaton CB, Ehringer MA, Esko T, Faul JD, Fernandes Silva L, Fiorillo E, Fornage M, Freedman BI, Gabrielsen ME, Garrett ME, Gharib SA, Gieger C, Gillespie N, Glahn DC, Gordon SD, Gu CC, Gu D, Gudbjartsson DF, Guo X, Haessler J, Hall ME, Haller T, Harris KM, He J, Herd P, Hewitt JK, Hickie I, Hidalgo B, Hokanson JE, Hopfer C, Hottenga J, Hou L, Huang H, Hung YJ, Hunter DJ, Hveem K, Hwang SJ, Hwu CM, Iacono W, Irvin MR, Jee YH, Johnson EO, Joo YY, Jorgenson E, Justice AE, Kamatani Y, Kaplan RC, Kaprio J, Kardia SLR, Keller MC, Kelly TN, Kooperberg C, Korhonen T, Kraft P, Krauter K, Kuusisto J, Laakso M, Lasky-Su J, Lee WJ, Lee JJ, Levy D, Li L, Li K, Li Y, Lin K, Lind PA, Liu C, Lloyd-Jones DM, Lutz SM, Ma J, Mägi R, Manichaikul A, Martin NG, Mathur R, Matoba N, McArdle PF, McGue M, McQueen MB, Medland SE, Metspalu A, Meyers DA, Millwood IY, Mitchell BD, Mohlke KL, Moll M, Montasser ME, Morrison AC, Mulas A, Nielsen JB, North KE, Oelsner EC, Okada Y, Orrù V, Palmer ND, Palviainen T, Pandit A, Park SL, Peters U, Peters A, Peyser PA, Polderman TJC, Rafaels N, Redline S, Reed RM, Reiner AP, Rice JP, Rich SS, Richmond NE, Roan C, Rotter JI, Rueschman MN, Runarsdottir V, Saccone NL, Schwartz DA, Shadyab AH, Shi J, Shringarpure SS, Sicinski K, Skogholt AH, Smith JA, Smith NL, Sotoodehnia N, Stallings MC, Stefansson H, Stefansson K, Stitzel JA, Sun X, Syed M, Tal-Singer R, Taylor AE, Taylor KD, Telen MJ, Thai KK, Tiwari H, Turman C, Tyrfin... Genetic diversity fuels gene discovery for tobacco and alcohol use. Nature. 2022 Dec;612(7941):720-724. PubMed PMID: 36477530

Zellers SM, Ross JM, Saunders GRB, Ellingson JM, Anderson JE, Corley RP, Iacono W, Hewitt JK, Hopfer CJ, McGue MK, Vrieze S. Impacts of recreational cannabis legalization on cannabis use: a longitudinal discordant twin study. Addiction. 2023 Jan;118(1):110-118. PubMed PMID: 36002928

Hinckley J, Bhatia D, Ellingson J, Molinero K, Hopfer C. The impact of recreational cannabis legalization on youth: the Colorado experience. Eur Child Adolesc Psychiatry. 2022 Apr 15. [Epub ahead of print] PubMed PMID: 35428897

Jami ES, Hammerschlag AR, Ip HF, Allegrini AG, Benyamin B, Border R, Diemer EW, Jiang C, Karhunen V, Lu Y, Lu Q, Mallard TT, Mishra PP, Nolte IM, Palviainen T, Peterson RE, Sallis HM, Shabalin AA, Tate AE, Thiering E, Vilor-Tejedor N, Wang C, Zhou A, Adkins DE, Alemany S, Ask H, Chen Q, Corley RP, Ehli EA, Evans LM, Havdahl A, Hagenbeek FA, Hakulinen C, Henders AK, Hottenga JJ, Korhonen T, Mamun A, Marrington S, Neumann A, Rimfeld K, Rivadeneira F, Silberg JL, van Beijsterveldt CE, Vuoksimaa E, Whipp AM, Tong X, Andreassen OA, Boomsma DI, Brown SA, Burt SA, Copeland W, Dick DM, Harden KP, Harris KM, Hartman CA, Heinrich J, Hewitt JK, Hopfer C, Hypponen E, Jarvelin MR, Kaprio J, Keltikangas-Järvinen L, Klump KL, Krauter K, Kuja-Halkola R, Larsson H, Lehtimäki T, Lichtenstein P, Lundström S, Maes HH, Magnus P, Munafò MR, Najman JM, Njølstad PR, Oldehinkel AJ, Pennell CE, Plomin R, Reichborn-Kjennerud T, Reynolds C, Rose RJ, Smolen A, Snieder H, Stallings M, Standl M, Sunyer J, Tiemeier H, Wadsworth SJ, Wall TL, Whitehouse AJO, Williams GM, Ystrøm E, Nivard MG, Bartels M, Middeldorp CM. Genome-wide Association Meta-analysis of Childhood and Adolescent Internalizing Symptoms. J Am Acad Child Adolesc Psychiatry. 2022 Jul;61(7):934-945. PubMed PMID: 35378236

Kent KR, Hopfer CJ, Corley RP, Stallings MC. Executive functions as a mediator of childhood maltreatment on adult psychopathology: A longitudinal mediation analysis comparing maltreatment factor models. Child Abuse Negl. 2022 Jan;123:105369. PubMed PMID: 34883422

Zellers S, Alexander J, Ellingson JM, Schaefer JD, Corley RP, Iacono W, Hewitt JK, Hopfer CJ, McGue MK, Vrieze S. Limited psychological and social effects of lifetime cannabis use frequency: Evidence from a 30-year community study of 4,078 twins. J Psychopathol Clin Sci. 2024 Jan;133(1):115-128. PubMed PMID: 38147055

Ross JM, Karoly HC, Zellers SM, Ellingson JM, Corley RP, Iacono WG, Hewitt JK, McGue M, Vrieze S, Hopfer CJ. Addendum to "Evaluating substance use outcomes of recreational cannabis legalization using a unique co-twin control design". Am J Drug Alcohol Abuse. 2023 Sep 3;49(5):684. PubMed PMID: 38014892

Zellers SM, Ross JM, Saunders GRB, Ellingson JM, Walvig T, Anderson JE, Corley RP, Iacono W, Hewitt JK, Hopfer CJ, McGue MK, Vrieze S. Recreational cannabis legalization has had limited effects on a wide range of adult psychiatric and psychosocial outcomes. Psychol Med. 2023 Jan 5;53(14):1-10. [Epub ahead of print] PubMed PMID: 36601811

Zellers SM, Ross JM, Saunders GRB, Ellingson JM, Anderson JE, Corley RP, Iacono W, Hewitt JK, Hopfer CJ, McGue MK, Vrieze S. Impacts of recreational cannabis legalization on cannabis use: a longitudinal discordant twin study. Addiction. 2023 Jan;118(1):110-118. PubMed PMID: 36002928

Hinckley J, Bhatia D, Ellingson J, Molinero K, Hopfer C. The impact of recreational cannabis legalization on youth: the Colorado experience. Eur Child Adolesc Psychiatry. 2024 Mar;33(3):637-650. PubMed PMID: 35428897

Winters DE, Mikulich SK, Hopfer C, Sakai JT. Adolescents in Treatment for Substance Use Disorders: Callous-Unemotional Traits Moderate Associations Between Transdiagnostic Symptoms and Adolescent Suicidality. Child Psychiatry Hum Dev. 2023 Apr;54(2):397-405. PubMed PMID: 34559328

Gresko SA, Rieselbach M, Corley RP, Hopfer CJ, Stallings MC, Hewitt JK, Rhee SH. Subjective effects as predictors of substance use disorders in a clinical sample: A longitudinal study. Drug Alcohol Depend. 2023 Aug 1;249:110822. PubMed PMID: 37331303

Ross JM, Karoly HC, Zellers SM, Ellingson JM, Corley RP, Iacono WG, Hewitt JK, McGue M, Vrieze S, Hopfer CJ. Evaluating substance use outcomes of recreational cannabis legalization using a unique co-twin control design. Am J Drug Alcohol Abuse. 2023 Sep 3;49(5):630-639. PubMed PMID: 37262386

Giannelis A, Willoughby EA, Corley R, Hopfer C, Hewitt JK, Iacono WG, Anderson J, Rustichini A, Vrieze SI, McGue M, Lee JJ. The association between saving disposition and financial distress: A genetically informed approach. J Econ Psychol. 2023 Jun;96. PubMed PMID: 37092036

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