z. N. Shardanov
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Zurab N. Shardanov, postgraduate student of the Department of Otorhinolarinology

41, Kirochnaya street, St. Petersburg, 191015

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

Sergey A. Artyushkin, Dr. of Sci. (Med), Professor, Head of the Department of Otorhinolaryngology

9, Bronnitskaya St., St. Petersburg, 190013

A. A. Krivopalov
St. Petersburg Research Institute of Ear, Throat, Nose, and Speech
Russian Federation

Aleksandr A. Krivopalov, Dr. of Sci. (Med), Senior Researcher

9, Bronnitskaya St., St. Petersburg, 190013

N. A. Shnayder
V.M. Bekhterev National Medical Research Center for Psychiatry and Neurology
Russian Federation

Natal’ya A. Shnayder, Dr. of Sci. (Med), Professor, Leading Researcher

3, Bekhterev St., St. Petersburg, 192019

A. Yu. Shcherbuk
Saint-Petersburg State University
Russian Federation

Aleksandr Yu. Shcherbuk, Dr. of Sci. (Med), Professor

7-9, Universitetskaya Emb., St Petersburg, 199034

Yu. A. Shcherbuk
Saint-Petersburg State University
Russian Federation

Yuriy A. Shcherbuk, Academician of the Russian Academy of Sciences, Professor, Dr. of Sci. (Med), Head of the Department of Neurosurgery and Neurology

7-9, Universitetskaya Emb., St Petersburg, 199034

A. I. Krasikova
St. Petersburg Research Institute of Ear, Throat, Nose, and Speech
Russian Federation

Aleksandra I. Krasikova, resident

9, Bronnitskaya St., St. Petersburg, 190013