1 Department of Neurosurgery, Neurosurgery Department Office, Shiraz University of Medical Sciences, Namazi Hospital, Namazi Square, Shiraz, 7193711351, Iran.
2 Student Research Committee, Neurosurgery Department, Shiraz University of Medical Sciences, Shiraz, Iran. fariborz.ghaffarpasand@gmail.com.
3 Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran.