S. G. Shapovaliyants
Chair of Hospital-Based Surgery No.2 with the Research Laboratory of Surgical Gastroenterology and Endoscopy of the Pirogov Russian National Research Medical University, Moscow City Hospital No.31 of the Moscow Healthcare Department
Russian Federation

Doct. of Sci. (Med.), Professor, Head of the Chair of Hospital-Based Surgery No.2 

1, Ostrovityanova str., Moscow, 117997, Russian Federation

42, Lobachevsky str., Moscow, 119415, Russian Federation 

A. G. Pankov
Moscow City Hospital No.31 of the Moscow Healthcare Department
Russian Federation

Cand. of Sci. (Med.), Head of the Surgical Department No. 2 

Phone: + 7-985-928-78-24 

42, Lobachevsky str., Moscow, 119415, Russian Federation

S. A. Budzinskiy
Chair of Hospital-Based Surgery No.2 with the Research Laboratory of Surgical Gastroenterology and Endoscopy of the Pirogov Russian National Research Medical University, Moscow City Hospital No.31 of the Moscow Healthcare Department
Russian Federation

Cand. of Sci. (Med.), Senior Research Fellow of the Research Laboratory of Surgical Gastroenterology and Endoscopy; Senior Resident of the Endoscopic Department 

1, Ostrovityanova str., Moscow, 117997, Russian Federation

42, Lobachevsky str., Moscow, 119415, Russian Federation 

D. V. Bakhtiozina
Chair of Hospital-Based Surgery No.2 with the Research Laboratory of Surgical Gastroenterology and Endoscopy of the Pirogov Russian National Research Medical University, Moscow City Hospital No.31 of the Moscow Healthcare Department
Russian Federation

Research Fellow of the Research Laboratory of Surgical Gastroenterology and Endoscopy, Physician of the Endoscopic Department 

1, Ostrovityanova str., Moscow, 117997, Russian Federation

42, Lobachevsky str., Moscow, 119415, Russian Federation