1. Department of Otolaryngology, Karabuk University, Karabuk, Turkey
2. Department of Audiometry, Vocational School of Health Services, Karabuk University, Karabuk, Turkey
3. Department of Audiology, Ankara Yıldırım Beyazıt University, Ankara, Turkey
4. Department of Audiology, Karabuk Training and Research Hospital Karabuk, Karabuk, Turkey
5. Department of Otolaryngology, Sakarya University, Sakarya, Turkey