1. Department of Neurosurgery, Koç University School of Medicine, Istanbul, Turkey
2. Acıbadem Mehmet Ali Aydınlar University School of Medicine, Istanbul, Turkey
3. Medical Biotechnology, Acıbadem Mehmet Ali Aydınlar University, Istanbul, Turkey
4. Department of Radiation Oncology, Acıbadem Mehmet Ali Aydınlar University School of Medicine, Istanbul, Turkey