Siregar, Gontar A., Juwita Sembiring, Mabel Sihombing, Betthin Marpaung, Sri Sutadi, Abiran Nababan, Lukman Hakim Zain, and Pengarapen Tarigan. “Diagnostic Findings and ERCP Treatment in Patients With Obstructive Jaundice During Two Years at H. Adam Malik Hospital, Medan”. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy 4, no. 2 (January 8, 2003): 39–42. Accessed October 2, 2026. https://www.ina-jghe.com/index.php/jghe/article/view/95.