M. V. Kruchinina
Research Institute of Internal and Preventive Medicine — Branch of the Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State Medical University
Russian Federation

Margarita V. Kruchinina — Dr. Sci. (Med.), Docent, Head of the Gastroenterology Laboratory, Leading Researcher of the Gastroenterology Laboratory; Professor of the Department of Propaedeutics of Internal Diseases 

630089, Novosibirsk, Borisa Bogatkova str., 175/1 

M. F. Osipenko
Novosibirsk State Medical University
Russian Federation

Marina F. Osipenko — Dr. Sci. (Med.), Professor, Head of the Department of Propaedeutics of Internal Diseases 

630091, Novosibirsk, Krasny Ave., 52 

A. I. Valuyskikh
Research Institute of Internal and Preventive Medicine – Branch of the Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences
Russian Federation

Alexander I. Valuiskikh — Resident

630089, Novosibirsk, Borisa Bogatkova str., 175/1 

E. Yu. Valuiskikh
Novosibirsk State Medical University
Russian Federation

Ekaterina Yu. Valuyskikh — Cand. Sci. (Med.), Docent, Associate Professor at the Department of Therapy, Hematology and Transfusiology of the Faculty of Continuing Education and Retraining of Physicians

630091, Novosibirsk, Krasny Ave., 52 

I. O. Svetlova
Research Institute of Internal and Preventive Medicine — Branch of the Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences; Novosibirsk State Medical University
Russian Federation

Irina O. Svetlova — Cand. Sci. (Med.), Docent, Associate Professor at the Department of Therapy, Hematology and Transfusiology of the Faculty of Continuing Education and Retraining of Physicians; Gastroenterologist

630091, Novosibirsk, Krasny Ave., 52