D. A. Tulupov
Russian Medical Academy of Continuous Professional Education; Filatov Children's City Clinical Hospital
Russian Federation

Denis A. Tulupov - Cand. Sci. (Med.), Associate Professor, Associate Professor of the Department of Pediatric Otorhinolaryngology named after Professor B.V. Shevrygin, Russian Medical Academy of Continuous Professional Education; Otorhinolaryngologist, Filatov Children's City Clinical Hospital.

2/1, Bldg. 1, Barrikadnaya St., Moscow, 125993; 15, Sadovaya-Kudrinskaya St., Moscow, 123001

E. P. Karpova
Russian Medical Academy of Continuous Professional Education
Russian Federation

Elena P. Karpova - Dr. Sci. (Med.), Professor, Head of the Department of Pediatric Otorhinolaryngology named after Professor B.V. Shevrygin, Russian Medical Academy of Continuous Professional Education.

2/1, Bldg. 1, Barrikadnaya St., Moscow, 125993

O G. Naumov
Russian Medical Academy of Continuous Professional Education; Filatov Children's City Clinical Hospital
Russian Federation

Oleg G. Naumov - Cand. Sci. (Med.), Associate Professor of the Department of Pediatric Otorhinolaryngology named after Professor B.V. Shevrygin, Russian Medical Academy of Continuous Professional Education; Otorhinolaryngologist, Filatov Children's City Clinical Hospital.

2/1, Bldg. 1, Barrikadnaya St., Moscow, 125993; 15, Sadovaya-Kudrinskaya St., Moscow, 123001

B. I. Kerchev
Russian Medical Academy of Continuous Professional Education
Russian Federation

Boris I. Kerchev - Cand. Sci. (Med.), Assistant of the Department of Pediatric Otorhinolaryngology named after Professor B.V. Shevrygin, Russian Medical Academy of Continuous Professional Education.

2/1, Bldg. 1, Barrikadnaya St., Moscow, 125993

V. A. Grabovskaya
Filatov Children's City Clinical Hospital
Russian Federation

Vera A. Grabovskaya - Otorhinolaryngologist, Head of the Department of Otorhinolaryngology, Filatov Children's City Clinical Hospital.

15, Sadovaya-Kudrinskaya St., Moscow, 123001

A. S. Karaeva
Russian Medical Academy of Continuous Professional Education
Russian Federation

Angelina S. Karaeva - Resident of the Department of Pediatric Otorhinolaryngology named after Professor B.V. Shevrygin, Russian Medical Academy of Continuous Professional Education.

2/1, Bldg. 1, Barrikadnaya St., Moscow, 125993