S. N. Mekhtiev
Pavlov First Saint Petersburg State Medical University; Gastroenterology Center “Expert”
Russian Federation

Sabir N. Mekhtiev - Dr. Sci. (Med.), Professor of the Department of Hospital Therapy with a Course of Allergology and Immunology named after Academician M.V. Chernorutsky with a Clinic, Pavlov First Saint Petersburg State Medical University; Chief Physician, Gastroenterology Center “Expert”.

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

O. A. Mekhtieva
Pavlov First Saint Petersburg State Medical University; Gastroenterology Center “Expert”
Russian Federation

Olga A. Mekhtieva - Cand. Sci. (Med.), Associate Professor of the Department of Hospital Therapy with a Course of Allergology and Immunology named after Academician M.V. Chernorutsky with a Clinic, Pavlov First Saint Petersburg State Medical University; Gastroenterologist, Therapist, Cardiologist, Gastroenterology Center “Expert”.

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

O. M. Berko
North-West District Scientific and Clinical Center named after L.G. Sokolov of the Federal Medical and Biological Agency of Russia
Russian Federation

Olesya М. Berko - Gastroenterologist, Endoscopist of the Endoscopic Department, North-West District Scientific and Clinical Center named after L.G. Sokolov of the Federal Medical and Biological Agency of Russia.

4, Kultury Ave., St Petersburg, 194291

A. S. Lovitskiy
Pavlov First Saint Petersburg State Medical University
Russian Federation

Aleksandr S. Lovitskiy - Student, Faculty of Medicine, Pavlov First Saint Petersburg State Medical University.

6–8, Lev Tolstoy St., St Petersburg, 197022