For citations:
Styazhkina S.N., Matusevich A.E., Korniliev M.V., Babenko E.V. Covered perforative ulcer of the duodenum with a clinical picture of acute pan-creatitis. Bulletin of the Medical Institute "REAVIZ" (REHABILITATION, DOCTOR AND HEALTH). 2020;(4):61-64. (In Russ.) https://doi.org/10.20340/vmi-rvz.2020.4.7