R. G. Myazin
Volgograd State Medical Universit
Russian Federation

Roman G. Myazin, Cand. of Sci. (Med.), Associate Professor, department of propaedeutics of internal diseases 

y; 1, area of the Fallen Fighters, Volgograd, 400131

D. N. Emel’yanov
Volgograd State Medical Universit
Russian Federation

Dmitriy N. Emelianov, Cand. of Sci. (Med.), Associate Professor, Head of the department of propaedeutics

y; 1, area of the Fallen Fighters, Volgograd, 400131