1. Department of Otorhinolaryngology, Kozyatağı Central Hospital, Istanbul, Turkey
2. Department of Otorhinolaryngology, University of Health Sciences, Prof. Dr. Cemil Taşçıoğlu City Hospital, Istanbul, Turkey
3. Department of Neurology, University of Health Sciences, Prof. Dr. Cemil Taşçıoğlu City Hospital, Istanbul, Turkey
4. Faculty of Medicine, Department of Otorhinolaryngology, Üsküdar University, Istanbul, Turkey
5. Department of Otorhinolaryngology, Haliç University, Avcilar Hospital, Istanbul, Turkey