Anwar MI, Qureshi  MI  , Shafi M, Durrani  KM. Challenges in Surgical Management of Extra-Hepatic Cholangiocarcinoma: A Case Series of 9-Year Experience in Pakistan. Annals KEMU [Internet]. 2019 Oct. 14 [cited 2024 Dec. 26];25(3). Available from: https://annalskemu.org/journal/index.php/annals/article/view/3053