1. Department of Otorhinolaryngology, Health Sciences University Bursa Yüksek İhtisas Training and Research Hospital, Bursa, Turkey
2. Ophthalmology Clinic, Health Sciences University Bursa Yüksek İhtisas Training and Research Hospital, Bursa, Turkey
3. Department of Otorhinolaryngology, Medical Faculty, Kırıkkale University, Kırıkkale, Turkey
4. Department of Otorhinolaryngology, Kurtalan State Hospital, Siirt, Turkey