KH.G. MAKHACHEVA1, L.M. ASKHABOVA2, N.A. DAYKHES3 1Dagestan Medical College, 56 Shamilya St., Makhachkala, Russian Federation, 367015 2Dagestan State Medical Academy, 44 Shamilya St., Makhachkala, Russian Federation, 367015 3Scientific-Clinical Centre for Otorhinolaryngology, 30/2 Volokolamskoye shosse, Moscow, Russian Federation, 123182 Makhacheva Kh.G. –– Cand. Med. Sc., Director, tel. (8722) 63-81-65, e-mail: dbmk@list.ru Askhabova L.M. –– D. Med. […]