BEYLER, Ali Reşit. “Transpapillary and Percutaneous Transhepatic Forceps Biopsy in Bile Duct Strictures”. Turkish Journal of Gastroenterology 9, no. 3 (January 3, 1998): 247–249. Accessed January 1, 2026. https://www.turkjgastroenterol.org/index.php/tjg/article/view/899.