M. Yu. Korkmazov
Saint Petersburg Research Institute of Ear, Throat, Nose and Speech; South Ural State Medical University
Russian Federation

Musos Yu. Korkmazov - Dr. Sci. (Med.), Professor of the Department of Otorhinolaryngology, Saint Petersburg Research Institute of Ear, Throat, Nose and Speech; Head of the Department of Otorhinolaryngology, South Ural State Medical University.

9, Bronnitskaya St., St Petersburg, 190013; 64, Vorovskiy St., Chelyabinsk, 454092

N. V. Kornova
South Ural State Medical University
Russian Federation

Natalya V. Kornova - Cand. Sci. (Med.), Associate Professor of the Department of Otorhinolaryngology, South Ural State Medical University.

64, Vorovskiy St., Chelyabinsk, 454092

A. M. Korkmazov
South Ural State Medical University
Russian Federation

Arsen M. Korkmazov - Cand. Sci. (Med.), Associate Professor of the Department of Otorhinolaryngology, South Ural State Medical University.

64, Vorovskiy St., Chelyabinsk, 454092