S. G. Shapovalianz
Department of Hospital Surgery No. 2 with Research Laboratory of Surgical Gastroenterology and Endoscopy, Pirogov Russian National Research Medical University; Municipal Clinical Hospital No. 31 of the Moscow Healthcare Department
Russian Federation

Sergej G. Shapovalianz – Doct. of Sci. (Med.), Professor, Head of the Department of Hospital Surgery No.2, Pirogov Russian National Research Medical University

1, Ostrovitianova str., Moscow, 117513

42, Lobachevskogo str., Moscow, 119414

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

Stanislav A. Budzinskiy – Doct. of Sci. (Med.), Chief Researcher of the Research Laboratory of Surgical Gastroenterology and Endoscopy, Department of Hospital Surgery No. 2, Pirogov Russian National Research Medical University, Senior Resident of the Endoscopy Department, Municipal Clinical Hospital No. 31.

1, Ostrovitianova str., Moscow, 117513

42, Lobachevskogo str., Moscow, 119414

M. V. Bordikov
Municipal Clinical Hospital No. 31 of the Moscow Healthcare Department
Russian Federation

Maxim V. Bordikov – Endoscopist of the Endoscopy Department

42, Lobachevskogo str., Moscow, 119414

E. D. Fedorov
Pirogov Russian National Research Medical University
Russian Federation

Evgeny D. Fedorov – Doct. of Sci. (Med.), Professor, Chief Researcher, Research Laboratory of Surgical Gastroenterology and Endoscopy

1, Ostrovitianova str., Moscow, 117513

A. S. Budzinskiy
Pirogov Russian National Research Medical University
Russian Federation

Aleksandr S. Budzinskiy – 5th year Student of the Faculty of General Medicine

1, Ostrovitianova str., Moscow, 117513