AHMAD F, KHAN AFA, AHMAD A, CHEEMA KM. Extrahepatic Biliary Obstruction: A study of Aetiological Factors In A Teaching Hospital. . Annals KEMU [Internet]. 2020 Jun. 22 [cited 2024 May 15];3(1&2):6-8. Available from: https://www.annalskemu.org/journal/index.php/annals/article/view/3450