A. A. Krivopalov
Saint Petersburg Research Institute of Ear, Throat, Nose and Speech; North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Aleksandr A. Krivopalov, Dr. Sci. (Med.), Head of the Research Department of Upper Respiratory PathoLogy, Saint Petersburg Research Institute of Ear, Throat, Nose and Speech; Associate Professor of the Department of Otorhinolaryngology, North-Western State Medical University named after I.I. Mechnikov;

9, Bronnitskaya St., St Petersburg, 190013;
41, Kirochnaya St., St Petersburg, 191015

S. V. Ryazantsev
Saint Petersburg Research Institute of Ear, Throat, Nose and Speech
Russian Federation

Sergey V. Ryazantsev, Dr. Sci. (Med.), Professor, Deputy Director for Science

9, Bronnitskaya St., St Petersburg, 190013

V. V. Turieva
Saint Petersburg Research Institute of Ear, Throat, Nose and Speech
Russian Federation

Victoria V. Turieva, Junior Researcher of the Research Department of Upper Respiratory Pathology

9, Bronnitskaya St., St Petersburg, 190013

L. S. Krasheninnikova
South Ural State Medical University
Russian Federation

Lilia S. Krasheninnikova, Postgraduate Student, Department of Otorhinolaryngology

64, Vorovskiy St., Chelyabinsk, 454092