I. M. Kirichenko
Peoples’ Friendship University of Russia named after Patrice Lumumba; International Medical Center “On Clinic”
Russian Federation

Irina M. Kirichenko, Dr. Sci. (Med.), Professor of the Department of Otorhinolaryngology at the Medical Institute; Head of the Department of Otorhinolaryngology

6, Miklukho-Maklai St., Moscow, 117198

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

V. I. Popadyuk
Peoples’ Friendship University of Russia named after Patrice Lumumba
Russian Federation

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

6, Miklukho-Maklai St., Moscow, 117198

N. S. Kozlova
Peoples’ Friendship University of Russia named after Patrice Lumumba; International Medical Center “On Clinic”
Russian Federation

Natalia S. Kozlova, Assistant of the Department of Otorhinolaryngology; Otorhinolaryngologist

6, Miklukho-Maklai St., Moscow, 117198

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

A. I. Chernolev
Peoples’ Friendship University of Russia named after Patrice Lumumba
Russian Federation

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

6, Miklukho-Maklai St., Moscow, 117198