K. V. Eremeeva
Sechenov First Moscow State Medical University (Sechenov University)
Russian Federation

Ksenia V. Eremeeva, Cand. Sci. (Med.), Associate Professor of the Department of Ear, Throat and Nose Diseases at the N.V. Sklifosovsky Institute of Clinical Medicine

8, Bldg. 2, Trubetskaya St., Moscow, 119991, Russia 

V.V. V. Nagovskaya
Sechenov First Moscow State Medical University (Sechenov University)
Russian Federation

Victoria Valeria V. Nagovskaya, Clinical Resident of the Department of Ear, Throat and Nose Diseases of the N.V. Sklifosovsky Institute of Clinical Medicine

8, Bldg. 2, Trubetskaya St., Moscow, 119991, Russia 

S. V. Morozova
Sechenov First Moscow State Medical University (Sechenov University)
Russian Federation

Svetlana V. Morozova, Dr. Sci. (Med.), Professor of the Department of Ear, Throat and Nose Diseases of the N.V. Sklifosovsky Institute of Clinical Medicine

8, Bldg. 2, Trubetskaya St., Moscow, 119991, Russia