1. Department of Otorhinolaryngology, University of Health Sciences, Prof. Dr. Cemil Tascioglu City Hospital, Istanbul, Turkey
2. Department of Otorhinolaryngology, Bulanik State Hospital, Mus, Turkey
3. Department of Otorhinolaryngology, Bahcelievler State Hospital, Istanbul, Turkey
4. Department of Otorhinolaryngology, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey
5. Malazgirt County Health Directorate, Public Health Specialist, Mus, Turkey
6. Department of Otorhinolaryngology, Kahramanmaras Necip Fazil City Hospital, Kahramanmaras, Turkey