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

Irina M. Kirichenko - Dr. Sci. (Med.), Department of Otorhinolaryngology of the Medical Institute, PFUR named after Patrice Lumumba; Head of the Department of Otorhinolaryngology, International Medical Center On Clinics.

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.), Dean of the Faculty of Postgraduate Education and Head of the Department of Otorhinolaryngology of the Medical Institute, PFUR named after Patrice Lumumba.

6, Miklukho-Maklai St., Moscow, 117198

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

Natalia S. Kozlova - Assistant of the Department of Otorhinolaryngology, PFUR named after Patrice Lumumba; Otorhinolaryngologist, International Medical Center On Clinics.

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, PFUR named after Patrice Lumumba.

6, Miklukho-Maklai St., Moscow, 117198