Perveen, Irin, Md Quamrul Hasan, and Md Abu Mosabbir. “Clinical and Endoscopic Profile of Patients With Upper Gastro-Intestinal Bleeding (UGIB)”. Journal of Enam Medical College 9, no. 2 (May 16, 2019): 78–83. Accessed April 26, 2024. https://www.banglajol.info/index.php/JEMC/article/view/41408.