1. Department of Otorhinolaryngology; GATA Haydarpaşa Training Hospital; Istanbul
2. Department of Neurology; GATA Haydarpaşa Training Hospital; Istanbul
3. Division of Otorhinolaryngology; Istanbul Surgery Hospital; Istanbul
4. Department of Radiology; GATA Haydarpaşa Training Hospital; Istanbul
5. Department of Otorhinolaryngology; Amasya University Training and Research Hospital; Amasya Turkey