1. Department of Neurosurgery, Dokuz Eylul University School of Medicine, Izmir, Turkey;
2. Department of Neurosurgery, Ardahan State Hospital, Ardahan, Turkey;
3. Department of Biomechanics, Dokuz Eylul University School of Medicine Health Science Institute, Izmir, Turkey;
4. Department of Pathology, Forensic Medicine Institution, Izmir, Turkey