Toffol, DO, Royce, Stephen Stacey, DO, and Paul Cump, DO. “Probiotic Use in Gastrointestinal Conditions: An Overview of Efficacy and Evidence”. Osteopathic Family Physician 11, no. 5 (September 8, 2019): 22–28. Accessed April 26, 2024. https://ofpjournal.com/index.php/ofp/article/view/630.