1. ENT Department, Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 8th Eroii Sanitari Boulevard, 050474 Bucharest, Romania
2. “Prof. Dr. D. Hociota” Institute of Phonoaudiology and Functional ENT Surgery, 21st Mihail Cioranu Street, 061344 Bucharest, Romania
3. Neurology Department, Elias Emergency University Hospital, 17th Marasti Boulevard, 011461 Bucharest, Romania
4. Pathology Department, Emergency University Hospital, 169th Independence Street, 050098 Bucharest, Romania