For citations:

Chernykh D.A., Filin A.A., Pihanov R.V., Duvanskiy V.A. Features of endoscopic interventions in the pancreato-biliary zone in patients operated by Billrot-II. Experimental and Clinical Gastroenterology. 2025;(5):43-46. (In Russ.) https://doi.org/10.31146/1682-8658-ecg-237-5-43-46