1. Faculty of Medicine Ankara City Hospital Department of Neurosurgery, Yıldırım Beyazıt University, Ankara, Turkey
2. CÚRAM-SFI Research Centre for Medical Devices, Department of Physiology, University of Galway, Galway, Ireland
3. Faculty of Medicine Ankara City Hospital Department of Histology and Embryology, Yıldırım Beyazıt University, Ankara, Turkey
4. Faculty of Medicine Ankara City Hospital Department of Biochemistry, Yıldırım Beyazıt University, Ankara, Turkey
5. Hacettepe University Faculty of Medicine, Department of Neurology, Ankara, Turkey