1. Department of Neuroradiology, Chang Gung Memorial Hospital, Linkou Medical Center, Taiwan
2. Department of Neurosurgery, RED LATINO, Latin American Trauma and Intensive Neuro Care Organization, Bogota, Colombia
3. Internal Medicine, National Autonomous University of Mexico, UNAM, Mexico City, Mexico
4. Department of Radiology, National Autonomous University of Mexico, UNAM, Mexico City, Mexico
5. Department of Neurosurgery, MM Institute of Medical Sciences and Research, Maharishi Markandeshwar University, Ambala, Haryana, India