A. I. Dolgushina
South Ural State Medical University

Anastasia I. Dolgushina — Dr. Sci. (Med.), Associate Professor, Head of the Department of Hospital Therapy

454092, Chelyabinsk, Vorovskogo str., 64

A. A. Selyanina
South Ural State Medical University
Russian Federation

Anna A. Selyanina — Assistant of the Department of Hospital Therapy

454092, Chelyabinsk, Vorovskogo str., 64

V. V. Dubrovina
South Ural State Medical University

Viktoria V. Dubrovina — 6th year student

454092, Chelyabinsk, Vorovskogo str., 64

G. A. Isyangildina
South Ural State Medical University

Gulnaz A. Isyangildina — 6th year student

454092, Chelyabinsk, Vorovskogo str., 64

E. R. Olevskaya
South Ural State Medical University; Chelyabinsk Regional Clinical Hospital

Elena R. Olevskaya — Dr. Sci. (Med.), Associate Professor, Head of the Department of Endoscopy

454092, Chelyabinsk, Vorovskogo str., 64