Yousuf, Muhammad, Mohammad Hasan, Shib Sankar Saha, SM Ashraf Ali, Shamim Boksha, and Margub Hossain. 2013. “Diagnostic Yields of ERCP: First Study of Previously Unexamined Population of Southeastern Part of Bangladesh”. Chattagram Maa-O-Shishu Hospital Medical College Journal 12 (1):1-3. https://banglajol.info/index.php/CMOSHMCJ/article/view/15474.