1. College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
2. Texas A&M University College of Medicine, Houston, Texas, United States
3. Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
4. Dr. Kiran C. Patel College of Allopathic Medicine, Nova Southeastern University, Fort Lauderdale, Florida, United States
5. Department of Neurosurgery, Trauma Center, Gamma Knife Center, Cannizzaro Hospital, Catania, Italy
6. Department of Radiology, Baylor College of Medicine, Houston, Texas, United States
7. Department of Neurological Surgery, Indiana University School of Medicine, Indianapolis, Indiana, United States
8. Department of Neurosurgery, Memorial Sloan Kettering Cancer Center, New York, New York, United States