T. S. Krolevets
Omsk State Medical University; Clinical Cardiology Dispensary
Russian Federation

Tatyana S. Krolevets, Cand. Sci. (Med.), Associate Professor of the Department of Faculty Therapy and Gastroenterology, 12, Lenin St., Omsk, 644043;

Gastroenterologist, 41, Lermontov St., Omsk, 644024

M. A. Livzan
Omsk State Medical University
Russian Federation

Maria A. Livzan, Corr. Member RAS, Dr. Sci. (Med.), Professor, Gastroenterologist, Chief Freelance Therapist in the Siberian Federal District, Head of the Department of Faculty Therapy and Gastroenterology, Rector,

12, Lenin St., Omsk, 644043

M. I. Syrovenko
Omsk State Medical University; Clinical Cardiology Dispensary
Russian Federation

Maria I. Syrovenko, Postgraduate Student of the Department of Faculty Therapy and Gastroenterology, 12, Lenin St., Omsk, 644043;

Gastroenterologist, 41, Lermontov St., Omsk, 644024