V. S. Isachenko
St Petersburg Research Institute of Ear, Throat, Nose and Speech; St Petersburg State University
Russian Federation

Vadim S. Isachenko - Dr. Sci. (Med.), Associate Professor, Senior Researcher, Deputy Chief Physician for Surgery, St Petersburg Research Institute of Ear, Throat, Nose and Speech; Professor of the Department Otorhinolaryngology and Ophthalmology at the Medical Institute, St Petersburg State University.

9, Bronnitskaya St., St Petersburg, 190013; 8а, 21-ya Liniya Vasilevskogo Ostrova St., St Petersburg, 199106

S. Yu. Ognetov
Izhevsk State Medical Academy
Russian Federation

Sergey Yu. Ognetov - Cand. Sci. (Med.), Associate Professor of the Department of Otorhinolaryngology, Izhevsk State Medical Academy.

281, Kommunarov St., Izhevsk, 426034

S. S. Vysockaya
St Petersburg Research Institute of Ear, Throat, Nose and Speech
Russian Federation

Svetlana S. Vysockaya - Deputy Head of the Organizational and Methodological Department, Otorhinolaryngologist, St Petersburg Research Institute of Ear, Throat, Nose and Speech.

9, Bronnitskaya St., St Petersburg, 190013