1. Emergency Department Hospital Universitario Rio Hortega Valladolid Spain
2. Faculty of Medicine Advanced Life Support Emergency Medical Services Valladolid University Valladolid Spain
3. Emergency Department Complejo Asistencial de Segovia Segovia Spain
4. Emergency Department Complejo Asistencial Universitario de Salamanca Salamanca Spain
5. Emergency Department Hospital Clínico Universitario de Valladolid Valladolid Spain