Belletrutti, Paul J, Hans Gerdes, and Mark A Schattner. “Successful Endoscopic Ultrasound-Guided Transduodenal Biliary Drainage Through a Pre-Existing Duodenal Stent”. JOP. Journal of the Pancreas 11, no. 3 (May 5, 2010): 234–236. Accessed April 20, 2025. https://serena.sharepress.it/index.php/jop/article/view/3819.