1. Departments of Radiology, Hospital General Dr. Manuel Gea González, National Autonomous University of Mexico
2. Department of Radiology Thoracic Surgery, Hospital General Dr. Manuel Gea González, National Autonomous University of Mexico
3. RED LATINO, Latin American Trauma & Intensive Neuro-Care Organization, Bogotá, Colombia
4. Department of Radiology, Antwerp University Hospital, University of Antwerp, Belgium