V. M. Svistushkin
First Moscow State Medical University named after I.M. Sechenov (Sechenov University)
Russian Federation

Valeriy M. Svistushkin, Dr. of Sci. (Med.), professor, Head of the Department of ENT Diseases

8, Bldg. 2, Trubetskaya St., Moscow, 119991

E. S. Shchennikova
First Moscow State Medical University named after I.M. Sechenov (Sechenov University)
Russian Federation

Ekaterina S. Shchennikova, Otorhinolaryngologist, Department of Otorhinolaryngology, University Clinical Hospital No. 1

8, Bldg. 2, Trubetskaya St., Moscow, 119991

E. V. Sin’kov
First Moscow State Medical University named after I.M. Sechenov (Sechenov University)
Russian Federation

Eduard V. Sin’kov, Cand. of Sci. (Med.), Associate Professor, Department of ENT Diseases

8, Bldg. 2, Trubetskaya St., Moscow, 119991

V. P. Sobolev
First Moscow State Medical University named after I.M. Sechenov (Sechenov University)
Russian Federation

Vasiliy P. Sobolev, Cand. of Sci. (Med.), Associate Professor, Department of ENT Diseases

8, Bldg. 2, Trubetskaya St., Moscow, 119991