I. A. Nechai
St Petersburg University
Russian Federation

Nechai Igor A. - Dr. of Sci. (Med),, Professor of the Department of Postgraduate Medical Education of the Faculty of Medicine

Saint Petersburg

A. A. Bozhchenko
Military Medical Academy
Russian Federation

Bozhchenko Andrei A. - Cand. of Sci. (Med), Associate Professor of the Department of Skin and Venereal Diseases

Saint Petersburg

N. P. Maltcev
City hospital № 40 of the Kurortny district
Russian Federation

Maltcev Nikolai P. - Head of the Department of Coloproctology

9, Borisova str., Sestroretsk, Saint Petersburg, 197706

V. А. Vetochkin
St Petersburg University
Russian Federation

Vetochkin Vyacheslav А. - Clinical Resident of the Department of Postgraduate Medical Education of the Faculty of Medicine

Saint Petersburg

M. Yu. Yakunina
North-Western State Medical University named after I. I. Mechnikov
Russian Federation

Yakunina Marianna Yu. - Clinical Resident of the Department of Operative and Clinical Surgery with Topographic Anatomy named after S. A. Simbirtsev

Saint Petersburg