Dronov, A. I., I. L. Nastashenko, Yu. P. Bakunets, P. P. Bakunets, and L. V. Levchenko. “Problematic Issues of Endoscopic Biliary Stenting”. Klinicheskaia khirurgiia 86, no. 7 (July 7, 2019): 13-17. Accessed July 4, 2022. https://hirurgiya.com.ua/index.php/journal/article/view/696.