1. Department of Otorhinolaryngology, Antalya Education and Research Hospital, Antalya, Turkey.
2. Department of Otorhinolaryngology, Gaziosmanpasa University School of Medicine, Tokat, Turkey.
3. Department of Otorhinolaryngology, Dicle University School of Medicine, Diyarbakır, Turkey.
4. Department of Biochemistry, Harran University School of Medicine, Sanliurfa, Turkey.