Mehmet ERDOĞAN, Sezai YILMAZ, Vedat KIRIMLIOĞLU, and Musa AKOĞLU, “AN IMPORTANT FACTOR AFFECTING MORTALITY AFTER SURGERY FOR OBSTRUCTIVE JAUNDICE: BILIRUBIN LEVEL”, Turkish Journal of Gastroenterology, vol. 4, no. 4, pp. 627–630, Apr. 2020.