M. A. Ovsepian
Yevdokimov Moscow State University of Medicine and Dentistry
Russian Federation

Mariia A. Ovsepian, Assistant of the Department of Propaedeutics of Internal Diseases and Gastroenterology, Researcher of the Laboratory of Functional Research Methods in Gastroenterology 

20, Bldg. 1, Delegatskaya St., Moscow, 127473

E. V. Barkalova
Yevdokimov Moscow State University of Medicine and Dentistry
Russian Federation

Elena V. Barkalova, Assistant of the Department of Propaedeutics of Internal Diseases and Gastroenterology, Head of the Laboratory of Functional Research Methods in Gastroenterology 

20, Bldg. 1, Delegatskaya St., Moscow, 127473

D. N. Andreev
Yevdokimov Moscow State University of Medicine and Dentistry
Russian Federation

Dmitry N. Andreev, Cand. Sci. (Med.), Associate Professor of the Department of Propaedeutics of Internal Diseases and Gastroenterology, Researcher, Laboratory of Functional Research Methods in Gastroenterology 

20, Bldg. 1, Delegatskaya St., Moscow, 127473

I. V. Maev
Yevdokimov Moscow State University of Medicine and Dentistry
Russian Federation

Igor V. Maev, Dr. Sci. (Med.), Professor, Acad. RAS, Honored Doctor of the Russian Federation, Honored Scientist of the Russian Federation, Head of the Department of Propaedeutics of Internal Diseases and Gastroenterology 

20, Bldg. 1, Delegatskaya St., Moscow, 127473