For citations:

Maystrenko N.A., Kurygin A.A., Kurygin A.A. The principles of planned surgical treatment of chronic duodenal ulcer(40-years experience of Clinic named for S.P. Fyodorov). Bulletin of Siberian Medicine. 2007;6(3):38-42. (In Russ.) https://doi.org/10.20538/1682-0363-2007-3-38-42