Khaity, Abdulrhman, Khaled Albakri, Ruaa E. Taha, and Ahmed Mohammed Ali Yousif Abd Alla. “Knowledge and Awareness about Aggravating Factors of the Peptic Ulcer Disease: A Cross-Sectional Study”. International Journal of Medical Students 10 (December 31, 2022): S228. Accessed July 24, 2024. https://ijms.pitt.edu/IJMS/article/view/1813.