For citations:

Styazhkina S.N., Kiryanov N.A., Oleneva S.A., Rakhmatullina E.N., Khazieva E.R. A clinical case of complicated duodenal ulcer, accompanied by perforation, penetration, bleeding with extensive infiltration of hepatococcus and the development of pancreatic necrosis. Experimental and Clinical Gastroenterology. 2025;(2):250-254. (In Russ.) https://doi.org/10.31146/1682-8658-ecg-234-2-250-254