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, Peoples’ Friendship University of Russia named after Patrice Lumumba; Head of the Department of Otorhinolaryngology, International Medical Center On Clinics

6, Miklukho-Maklaya 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

6, Miklukho-Maklaya 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, Peoples’ Friendship University of Russia named after Patrice Lumumba; Otorhinolaryngologist, International Medical Center On Clinics

6, Miklukho-Maklaya St., Moscow, 117198

M. M. Mamadkulov
Peoples’ Friendship University of Russia named after Patrice Lumumba
Russian Federation

Muslikhiddin M. Mamadkulov, Postgraduate Student of the Department of Otolaryngology

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

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