Perveen, Irin, Mufti Munsurar Rahman, and Madhusudan Saha. “Upper Gastrointestinal Symptoms in General Population of a District in Bangladesh”. Journal of Enam Medical College 4, no. 2 (July 9, 2014): 79–88. Accessed May 16, 2024. https://www.banglajol.info/index.php/JEMC/article/view/19458.