V. V. Dvorianchikov
St Petersburg Scientific Research Institute of Ear, Throat, Nose and Speech
Russian Federation

Vladimir V. Dvorianchikov - Dr. Sci. (Med.), Professor, Director, St Petersburg Research Institute of Ear, Throat, Nose and Speech.

9, Bronnitskaya St., St Petersburg, 190013.

Yu. K. Yanov
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Yuri K. Yanov - Academician RAS, Dr. Sci. (Med.), Professor, North-Western State Medical University named after I.I. Mechnikov.

41, Kirochnaya St., St Petersburg, 191015.

Ya. A. Nakatis
St Petersburg State University
Russian Federation

Yakov A. Nakatis - Dr. Sci. (Med.), Professor, Head of the Chair of Otorhinolaryngology and Ophthalmology of the Medical Faculty, St Petersburg State University.

4, Kultury Ave., St Petersburg, 194291.

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

Vadim S. Isachenko - Dr. Sci. (Med.), Associate Professor, Department of Otolaryngology, Military Medical Academy named S.M. Kirov.

6, Akademik Lebedev St., St Petersburg, 194044.

D. M. Ilyasov
Military Medical Academy named after S.M. Kirov
Russian Federation

Denis M. Ilyasov - Cand. Sci. (Med.), Lecturer, Military Medical Academy named after S.M. Kirov.

6, Akademik Lebedev St., St Petersburg, 194044.

V. R. Gofman
Professor Hoffman Clinic
Russian Federation

Viktor R. Gofman - Dr. Sci. (Med.), General Manager, Professor Hoffmann's Clinic.

3, Bldg. 3, Ushinsky St., St Petersburg, 195267.

K. V. Vinichenko
Military Medical Academy named after S.M. Kirov
Russian Federation

Ksenia V. Vinichenko - Otolaryngologist of the Clinic of Otolaryngology, Doctoral Candidate of the Department of Otolaryngology, Military Medical Academy named S.M. Kirov.

6, Akademik Lebedev St., St Petersburg, 194044.