1. Department of Neurosurgery-Critical Care, Red Latino, Latin American Trauma and Intensive Neuro-Care Organization, Bogota
2. Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi
3. Department of Internal Medicine, National Autonomous University of Mexico, Ciudad de Mexico
4. Department of Medicine, Universidad de Cartagena, Cartagena de Indias
5. Department of Radiology, National Autonomous University of Mexico, Ciudad de Mexico