1. Department of Neurosurgery, Corlu State Hospital, Tekirdag, Turkey
2. Department of Radiology, Hacettepe University, Ankara, Turkey
3. Department of Radiology, University Hospital, LMU Munich, Munich, Germany
4. Department of Neurosurgery, Seyhan State Hospital, Adana, Turkey
5. Department of Histology, Binali Yıldırım University, Erzincan, Turkey
6. Department of Histology, Hacettepe University, Ankara, Turkey
7. Department of Neurosurgery, Hacettepe University, Ankara, Turkey