Shil, Bimal Chandra, Madhusudan Saha, Md Royes Uddin, ANM Saifullah, Md Rehan Habib, Imteaz Mahbub, and Mamun Ur Rashid. “Impact of Endoscopic Ultrasound in Evaluation of Upper Abdominal Pain”. Medicine Today 33, no. 1 (February 25, 2021): 1–6. Accessed March 28, 2024. https://www.banglajol.info/index.php/MEDTODAY/article/view/52148.