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

Marina V. Drozdova - Dr. Sci. (Med.), Leading Researcher, Department of Pathology of the Upper Respiratory Tract, Head of the Department of Reconstructive Surgery, Saint Petersburg Research Institute of Ear, Throat, Nose and Speech.

9, Bronnitskaya St., St Petersburg, 190013

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

Sofya N. Larionova - Junior Researcher, Department of Pathology of the Upper Respiratory Tract, Saint Petersburg Research Institute of Ear, Throat, Nose and Speech.

9, Bronnitskaya St., St Petersburg, 190013

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

Elena V. Tyrnova - Cand. Sci. (Med.), Senior Researcher, Laboratory and Diagnostic Department, Saint Petersburg Research Institute of Ear, Throat, Nose and Speech.

9, Bronnitskaya St., St Petersburg, 190013