1. Department of Otorhinolaryngology, Acıbadem University Hospital, Istanbul, Turkey
2. Lewisham University Hospital, London
3. Department of Radiology, Istanbul Education and Research Hospital, Istanbul, Turkey
4. Department of Radiology, Sisli Hamidiye Etfal Education and Research Hospital, Istanbul, Turkey
5. Department of Otolaryngology, University Hospital of Wales, Cardiff, UK
6. Department of Otorhinolaryngology, Sisli Hamidiye Etfal Education and Research Hospital, Istanbul, Turkey
7. Department of Otolaryngology, Hopa State Hospital, Artvin, Turkey
8. Department of Otorhinolaryngology, Istanbul Aydın University, Istanbul, Turkey