1. Department of Neurosciences, King Faisal Specialist Hospital and Research Center, Jeddah 21499, Saudi Arabia
2. Department of Neurology, Children’s Mercy Hospital and Clinics, Kansas City, MO 64108, USA
3. Division of Neurosurgery, College of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
4. Division of Neurological Surgery, King Abdulaziz University Hospital, P.O. Box 80215, Jeddah 21589, Saudi Arabia