V. E. Fedorov
Saratov State Medical University named after V. I. Razumovsky
Russian Federation

Fedorov Vladimir E., Dr. of Sci. (Med), Professor, Professor of the Department of Surgery and Oncology

80/84, Rakhova str., Saratov, 410056, Russia.

B. S. Haritonov
Saratov State Medical University named after V. I. Razumovsky
Russian Federation

Kharitonov Boris S., Cand. of Sci. (Med.), Assistant of the Department of Surgery and Oncology

Saratov

V. V. Masljakov
Private institution educational organization of higher education «Saratov Medical University "Reaviz"»
Russian Federation

Maslyakov Vladimir V., Dr. of Sci. (Med), Professor, Professor of the Department of Surgical Diseases

Saratov

O. E. Logvina
Kabardino-Balkarian State University named after H. M. Berbekov
Russian Federation

Logvina Oksana E., Cand. of Sci. (Med.), Associate Professor of the Department of Hospital Surgery

Nalchik

M. A. Naryzhnaja
Saratov State Medical University named after V. I. Razumovsky
Russian Federation

Narizhnaya Maria A., student

Saratov