1. Department of Neurosurgery, School of Medicine, Yıl University, Van, Turkey
2. Department of Neurosurgery, School of Medicine, Bozok University, Yozgat, Turkey
3. Derince Teaching and Searching Hospital, Kocaeli, Turkey
4. Department of Physical Therapy and Rehabilitation, School of Medicine, Bozok University, Yozgat, Turkey