M. V. Komarov
Saint Petersburg Research Institute of Ear, Throat, Nose and Speech; City Hospital No. 26
Russian Federation

Mikhail V. Komarov, Cand. Sci. (Med.), Researcher, Research Department of Pathology of the External, Middle and Inner Ear, Saint Petersburg Research Institute of Ear, Throat, Nose and Speech; Otorhinolaryngologist, Head of Department, City Hospital No. 26;

9, Bronnitskaya St., St Petersburg, 190013, Russia;
2, Kostyushko St., 196247, St Petersburg, Russia 

A. A. Fedotova
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Anastasia A. Fedotova, Postgraduate Student of the Otorhinolaryngology Department

41, Kirochnaya St., St Petersburg, 191015, Russia

R. F. Galeev
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Radik F. Galeev, Cand. Sci. (Med.), Associate Professor of the Chair of Otorhinolaryngology

41, Kirochnaya St., St Petersburg, 191015, Russia