V. V. Gaynitdinova
First Moscow State Medical University named after I.M. Sechenov (Sechenov University)
Russian Federation

Dr. of Sci. (Med), assistant professor, professor of the Department of Pulmonology,

8, Bldg. 2, Trubetskaya Street, Moscow, 119991

A. A. Burdunina
First Moscow State Medical University named after I.M. Sechenov (Sechenov University)
Russian Federation

5th year student of the Faculty of Medicine, 

8, Bldg. 2, Trubetskaya Street, Moscow, 119991

S. N. Avdeyev
First Moscow State Medical University named after I.M. Sechenov (Sechenov University); Research Institute for Pulmonology of the Federal Medical Biological Agency
Russian Federation

Dr. of Sci. (Med), Professor, corresponding member of the Russian Academy of Sciences, head of the pulmonology department, 8, Bldg. 2, Trubetskaya Street, Moscow, 119991;

head of clinical department, 8, Orekhovy Boulevard, Moscow, 115682