O. B. Dronova
Federal State Budgetary Educational Institution of Higher Education “Orenburg State Medical University” of the Ministry of Health of the Russian Federation
Russian Federation

Olga B. Dronova, Doctor of Medical Sciences, Professor of the Department of Surgery

460000, Orenburg, Sovetskaya str., 6, Russia

I. I. Kagan
Federal State Budgetary Educational Institution of Higher Education “Orenburg State Medical University” of the Ministry of Health of the Russian Federation
Russian Federation

Ilya Io. Kagan, Honored Scientist of the Russian Federation, Doctor of Medical Sciences, Professor of the Department of Operative Surgery and Clinical Anatomy

460000, Orenburg, Sovetskaya str., 6, Russia

I. N. Fateyev
Federal State Budgetary Educational Institution of Higher Education “Orenburg State Medical University” of the Ministry of Health of the Russian Federation
Russian Federation

Ivan N. Fateyev, Doctor of Medical Sciences, Professor of the Department of Operative Surgery and Clinical Anatomy

460000, Orenburg, Sovetskaya str., 6, Russia

A. N. Shepelev
State Autonomous Health Care Institution “Orenburg Regional Clinical Hospital”
Russian Federation

Alexander N. Shepelev, Candidate of Medical Sciences, Endoscopist

460018, Orenburg, Aksakova str., 23, Russia