S. N. Mekhdiyev
First St. Petersburg State Medical University named after Academician I.P. Pavlov; Gastroenterological Center “Expert” LLC

Sabir N. Mekhdiyev — Dr. Sci. (Med.), Professor of the Department of Hospital Therapy with the course of Allergology and Immunology named after Academician M.V. Chernorutsky; chief physician

197022, St. Petersburg, Lev Tolstoy str., 6–8;
197110, St. Petersburg, Pionerskaya str., 16 

O. A. Mekhdieva
First St. Petersburg State Medical University named after Academician I.P. Pavlov; Gastroenterological Center “Expert” LLC

Olga A. Mekhdieva — Cand. Sci. (Med.), Associate Professor of the Department of Hospital Therapy with a course of allergology and Immunology named after Academician M.V. Chernorutsky; gastroenterologist

197022, St. Petersburg, Lev Tolstoy str., 6–8;
197110, St. Petersburg, Pionerskaya str., 16 

O. M. Berko
Gastroenterological Center “Expert” LLC
Russian Federation

Olesya M. Berko — gastroenterologist

197110, St. Petersburg, Pionerskaya str., 16