KARAEREN, Necmettin, Can UYGURER, Ergün SARAÇOĞLU, Celalettin ÇETİN, Sait BAĞCI, Mustafa GÜLŞEN, Ahmet UYGUN, Kemal DAĞALP, Burhan ŞAHİN, and Ahmet ALPER. 1998. “Mucinous Biliary Obstruction Associated With a Cholangiocarcinoma”. Turkish Journal of Gastroenterology 9 (4):381-84. https://www.turkjgastroenterol.org/index.php/tjg/article/view/931.