1. Department of Neurosurgery, Antalya Education and Research Hospital, Antalya, Turkey
2. School of Medicine, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
3. Physical Medicine and Rehabilitation Unit, Acıbadem Bağdat Caddesi Medical Center, Istanbul, Turkey
4. Department of Neurosurgery, School of Medicine, Health Sciences University, Istanbul, Turkey
5. FSM Training and Research Hospital, Neurosurgery Clinic, Istanbul, Turkey
6. Department of Neurosurgery, Akdeniz University, School of Medicine, Antalya, Turkey