S. A. Boldueva
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Svetlana A. Boldueva – MD, PhD, Professor, Head of Chair of Faculty Therapy

Kirochnaya ul. 41, Saint-Petersburg, 191015

I. V. Yarmosh
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Irina V. Yarmosh – MD, PhD, Assistant, Chair of Faculty Therapy

Kirochnaya ul. 41, Saint-Petersburg, 191015

A. N. Dolinova
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Alеna N. Dolinova – Resident, Chair of Faculty Therapy

Kirochnaya ul. 41, Saint-Petersburg, 191015

Z. G. Kaloeva
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Zemfira G. Kaloeva – MD, Department of Functional Diagnostics

Kirochnaya ul. 41, Saint-Petersburg, 191015

M. Yu. Serkova
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Margarita Yu. Serkova – MD, PhD, Assistant, Chair of Propaedeutic of Internal Diseases, Gastroenterology and Nutrition

Kirochnaya ul. 41, Saint-Petersburg, 191015

V. M. Avramova
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Vera M. Avramova – MD, Head of Gastroenterology Department

Kirochnaya ul. 41, Saint-Petersburg, 191015