E. V. Denisenko
ME “Vitebsk Regional Clinical Specialized Center”
Belarus

Eduard V. Denisenko — surgeon 

Nekrasova st., 10, Vitebsk, 210001

V. L. Denisenko
ME “Vitebsk Regional Clinical Specialized Center”; Vitebsk State Medical University
Belarus

Valery L. Denisenko — MD, Professor of the Department of General Surgery; Chief Physician 

Nekrasova st., 10, Vitebsk, 210001

27, Frunze Ave., Vitebsk, 210009

Yu. M. Gain
Belarusian Academy of Postgraduate Education of Doctors
Belarus

Yuri M. Gain — MD, Professor of the Department of Emergency Surgery, Vice-Rector for Scientific Work 

P. Brovki st., 3, bld. 3, Minsk, 220013

K. G. Tsyplakov
ME “Vitebsk Regional Clinical Specialized Center”
Belarus

Konstantin G. Tsyplakov — Head of the Department of Coloproctology

Nekrasova st., 10, Vitebsk, 210001

G. D. Korobov
Vitebsk State Medical University
Belarus

Gennady D. Korobov — Candidate of Medical Sciences, Associate Professor of the training center for Practical training and Simulation training

27, Frunze Ave., Vitebsk, 210009