N. S. Kozlova
RUDN University; International Medical Center “On Clinic”
Russian Federation

Natalia S. Kozlova, Assistant of the Department of Otorhinolaryngology, RUDN University; Otorhinolaryngologist, International Medical Center “On Clinic”

6, Miklukho-Maklai St., Moscow, 117198,

32, Bldg. 1, Bolshaya Molchanovka St., Moscow, 121069

I. M. Kirichenko
RUDN University; International Medical Center “On Clinic”
Russian Federation

Irina M. Kirichenko, Dr. Sci. (Med.), Department of Otorhinolaryngology of the Medical Institute, RUDN University; Head of the Department of Otorhinolaryngology, International Medical Center “On Clinic”

6, Miklukho-Maklai St., Moscow, 117198,

32, Bldg. 1, Bolshaya Molchanovka St., Moscow, 121069

V. I. Popadyuk
RUDN University
Russian Federation

Valentin I. Popadyuk, Dr. Sci. (Med.), Dean of the Faculty of Postgraduate Education and Head of the Department of Otorhinolaryngology of the Medical Institute

6, Miklukho-Maklai St., Moscow, 117198

А. I. Chernolev
RUDN University
Russian Federation

Anna I. Chernolev, Cand. Sci. (Med.), Associate Professor of the Department of Otorhinolaryngology

6, Miklukho-Maklai St., Moscow, 117198