V. M. Svistushkin
Federal State Autonomous Educational Institution of Higher Education First Moscow State Medical University named after I.M. Sechenov of the Ministry of Health of the Russian Federation (Sechenov University)
Russian Federation

Dr. of Sci. (Med.), Professor, Head of Chair of Ear, Nose & Throat Diseases, Federal State Autonomous Educational Institution of Higher Education «Sechenov First Moscow State Medical University» (Sechenov University) of the Ministry of Heath of the Russian Federation (Sechenov University)

G. N. Nikiforova
Federal State Autonomous Educational Institution of Higher Education First Moscow State Medical University named after I.M. Sechenov of the Ministry of Health of the Russian Federation (Sechenov University)
Russian Federation

Dr. of Sci. (Med.), Professor of Chair of Ear, Nose & Throat Diseases, Federal State Autonomous Educational Institution of Higher Education «Sechenov First Moscow State Medical University» of the Ministry of Heath of the Russian Federation (Sechenov University)

A. V. Merkushinа
Federal State Autonomous Educational Institution of Higher Education First Moscow State Medical University named after I.M. Sechenov of the Ministry of Health of the Russian Federation (Sechenov University)
Russian Federation

Resident Physician of Chair for Ear, Nose & Throat Diseases, Federal State Autonomous Educational Institution of Higher Education «Sechenov First Moscow State Medical University» of the Ministry of Heath of the Russian Federation (Sechenov University)