1. Brain and Spinal Cord Injuries Repair Research Center (BASIR), Tehran University of Medical Sciences, Tehran, Iran.
2. Department of Neurosurgery, Children's Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran.
3. Department of Neurosurgery, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.
4. Department of Radiology, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran.