S. V. Ryazantsev
Saint Petersburg Research Institute of Ear, Throat, Nose and Speech
Russian Federation

Sergey V. Ryazantsev, Dr. Sci. (Med.), Professor, Deputy Director for Research

9, Bronnitskaya St., St Petersburg, 190013

I. V. Tkachuk
Military Medical Academy named after S.M. Kirov
Russian Federation

Irina V. Tkachuk, Cand. Sci. (Med.), Associate Professor of the Department of Otorhinolaryngology

6, Akademik Lebedev St., St Petersburg, 194044

А. E. Golovanov
Military Medical Academy named after S.M. Kirov
Russian Federation

Andrey E. Golovanov, Cand. Sci. (Med.), Associate Professor, Head of the Department of Otorhinolaryngology

6, Akademik Lebedev St., St Petersburg, 194044

P. V. Kireev
Military Medical Academy named after S.M. Kirov
Russian Federation

Pavel V. Kireev, Lecturer, Department of Otorhinolaryngology

6, Akademik Lebedev St., St Petersburg, 194044

K. A. Balatskaya
Saint Petersburg Research Institute of Ear, Throat, Nose and Speech
Russian Federation

Kseniya A.Balatskaya, Junior Researcher

9, Bronnitskaya St., St Petersburg, 190013

O. S. Donskaya
Pavlov First Saint Petersburg State Medical University
Russian Federation

Olga S. Donskaya, Cand. Sci. (Med.), Assistant of the Department of Propaedeutics of Dental Diseases

6–8, Lev Tolstoy St., St Petersburg, 197022