O. V. Tashchyan
Federal State Autonomous Educational Institution of Higher Education I. M. Sechenov First Moscow State Medical University of the Ministry of Healthcare of Russian Federation (Sechenovskiy University)
Russian Federation

Olga V. Tashchyan, MD, gastroenterologist gastroenterology department, University clinical hospital № 1, 119991, Moscow, Russia

A. P. Pogromov
Federal State Autonomous Educational Institution of Higher Education I. M. Sechenov First Moscow State Medical University of the Ministry of Healthcare of Russian Federation (Sechenovskiy University)
Russian Federation

Alexander P. Pogromov, MD, PhD, Present Position (or Activity): professor of chair of hospital therapy № 1, medical faculty, 119991, Moscow, Russia

M. G. Mnatsakanyan
Federal State Autonomous Educational Institution of Higher Education I. M. Sechenov First Moscow State Medical University of the Ministry of Healthcare of Russian Federation (Sechenovskiy University)
Russian Federation

Marina G. Mnatsakanyan, MD, head of gastroenterology department, University clinical hospital № 1, 119991, Moscow, Russia

K. Yu. Kolosova
Federal State Autonomous Educational Institution of Higher Education I. M. Sechenov First Moscow State Medical University of the Ministry of Healthcare of Russian Federation (Sechenovskiy University)
Russian Federation

Ksenia Yu. Kolosova, MD, gastroenterologist gastroenterology department, University clinical hospital № 1, 119991, Moscow, Russia

M. E. Popova
Federal State Autonomous Educational Institution of Higher Education I. M. Sechenov First Moscow State Medical University of the Ministry of Healthcare of Russian Federation (Sechenovskiy University)
Russian Federation

Mariya E. Popova, Clinical ordinator Department of Hospital Therapy, Faculty of Medicine № 1, 119991, Moscow, Russia