1. Dicle University Medical Faculty, Department of Nuclear Medicine, Diyarbakir, Turkey,
2. Elazig Research and Training Hospital, Department of Otorhinolaryngology-Head and Neck Surgery, Elazig, Turkey
3. Dicle University, Department of Mining Engineering, Diyarbakir, Turkey
4. Dicle University Medical Faculty, Department of Otorhinolaryngology-Head and Neck Surgery, Diyarbakir, Turkey
5. Sivas State Hospital, Department of Otorhinolaryngology-Head and Neck Surgery, Sivas, Turkey