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

Junior Researcher of the Organizational and Methodological Department,

9, Bronnitskaya St., St Petersburg, 190013

A. A. Korneenkov
Saint Petersburg Research Institute of Ear, Throat, Nose and Speech
Russian Federation

Dr. Sci. (Med.), Professor, Head of the Laboratory of Informatics and Statistics, 

9, Bronnitskaya St., St Petersburg, 190013

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

Dr. Sci. (Med.), Professor, Director, 

9, Bronnitskaya St., St Petersburg, 190013

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

Dr. Sci. (Med.), Professor, Deputy Director for Scientific and Coordination Work,

9, Bronnitskaya St., St Petersburg, 190013

E. S. Ryazantseva
North-Western State Medical University named after I.I. Mechnikov
Russian Federation

Clinical Resident, Department of Orthodontics, 

41, Kirochnaya St., St Petersburg, 191015

O. S. Donskaya
Pavlov First Saint Petersburg State Medical University
Russian Federation

Cand. Sci. (Med.), Assistant of the Department of Propedeutics of Dental Diseases, 

6–8, Lev Tolstoy St., St Petersburg, 197022