M. V. Komarov
St Petersburg Research Institute of Ear, Throat, Nose and Speech; City Hospital No. 26; North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Mikhail V. Komarov - Cand. Sci. (Med.), Researcher of the Research Department of Pathology of the External, Middle and Inner Ear, St Petersburg RI of Ear, Throat, Nose and Speech; Head of the Otolaryngology Department, CH No. 26; Assistant of the Department of Otorhinolaryngology, North-Western S MU named after I.I. Mechnikov.

9, Bronnitskaya St., St Petersburg, 190013; 2, Kostyushko St., St Petersburg, 196247; 41, Kirochnaya St., St Petersburg, 191015

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

Galina S. Maltseva - Dr. Sci. (Med.), Honored Health Worker of the Russian Federation, Academic Secretary.

9, Bronnitskaya St., St Petersburg, 190013