1. Department of Otorhinolaryngology, Gaziosmanpasa Taksim Research and Education Hospital, Istanbul, Turkey
2. Department of Otolaryngology, Koc University Hospital, Istanbul, Turkey
3. Medical Faculty, Department of Otorhinolaryngology, Istanbul Kemerburgaz University, Istanbul, Turkey
4. Department of Plastic and Reconstructive Surgery, Gaziosmanpasa Taksim Research and Education Hospital, Istanbul, Turkey
5. Department of Biostatistics, Bezmiâlem Vakif University, Istanbul, Turkey