Authors
Aleksandre Kobakhidze
Belarusian Medical Academy of Postgraduate Education, Department of Otorhinolaryngology, Minsk, Belarus
Elena Merkulova
Belarusian Medical Academy of Postgraduate Education, Department of Otorhinolaryngology, Minsk, Belarus
Natalia Gvozdeva
Belarusian Medical Academy of Postgraduate Education, Department of Otorhinolaryngology, Minsk, Belarus
Dilyana Vicheva
Department of Otorhinolaryngology, Medical Faculty, Medical University, Plovdiv, Bulgaria