AnnaMaria Salas, Manon C. Williams, Elise Van Etten, Lauren Lewis, Christine E. MacBrayne, Sarah K. Parker; Prolonged Perioperative Antibiotics: A Hidden Problem. Hosp Pediatr February 2022; 12 (2): 125–132. https://doi.org/10.1542/hpeds.2021-006204United States Patent Pending, #60/222539, Seattle, WA, 2000