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

Elena A. Levina - Cand. Sci. (Med.), Senior Researcher at the Research Department of Diagnosis and Rehabilitation of Hearing Disorders.

9, Bronnitskaya St., St Petersburg, 190013

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

Sergey V. Levin - Cand. Sci. (Med.), Senior Researcher at the Research Department of Diagnosis and Rehabilitation of Hearing Disorders.

9, Bronnitskaya St., St Petersburg, 190013

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

Vladimir V. Dvoryanchikov - Dr. Sci. (Med.), Professor, Honored Doctor of Russia, Director.

9, Bronnitskaya St., St Petersburg, 190013

V. E. Kuzovkov
St Petersburg Research Institute of Ear, Throat, Nose and Speech
Russian Federation

Vladislav E. Kuzovkov - Dr. Sci. (Med.), Deputy Director for Innovation.

9, Bronnitskaya St., St Petersburg, 190013