Hussain, Maj Zaki, Khizar Ishtiaque Khan, Muhammad Vaseem, and Shabbir Hussain Rana. 2010. “EXTRAHEPATIC BILIARY OBSTRUCTION; POSTOPERATIVE MORBIDITY AND MORTALITY: Extrahepatic Biliary Obstruction”.
Pakistan Armed Forces Medical Journal 60 (2): 222-6.
https://www.pafmj.org/PAFMJ/article/view/901.