1. Medical Faculty, Department of Neurosurgery, Recep Tayyip Erdogan University, Rize, Turkey
2. Rize Education and Research Hospital Department of Neurosurgery, Rize, Turkey
3. Medical Faculty, Department of Radiology, Recep Tayyip Erdogan University, Rize, Turkey
4. Faculty of Medicine, Department of Otorhinolaryngology, Recep Tayyip Erdoğan University, Rize, Turkey