1. School of Medicine, Department of Physical Medicine and Rehabilitation, Bahçeşehir University, Istanbul, Turkey;
2. School of Medicine, Department of Neurosurgery, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
3. Neurosurgery Clinic, Antalya Atatürk State Hospital, Antalya, Turkey
4. Acıbadem Healthcare Group, Maslak Acıbadem Hospital, Neurosurgery Clinic, Istanbul, Turkey