1. Medical Faculty, Department of Neurosurgery, Usak University, Usak, Turkey
2. Medical Faculty, Department of Interventional Radiology, Tınaztepe University, Izmir, Turkey
3. Department of Neurosurgery, Sultan 2.Abdulhamid Han Sample Training And Research Hospital, Istanbul, Turkey
4. Medical Faculty, Department of Neurosurgery, Katip Çelebi University, Izmir, Turkey
5. Training and Research Center, Kutahya Health Sciences University, Kutahya, Turkey
6. Medical Faculty, Department of Histology and Embryology, Kutahya Health Sciences University, Kutahya, Turkey