1. The Prehospital Research Unit, Region of Southern Denmark Odense University Hospital Odense Denmark
2. Department of Anesthesiology and Intensive Care Medicine University Hospital Kolding Kolding Denmark
3. Department of Regional Health Research Region of Southern Denmark Odense Denmark
4. Department of Clinical Research University of Southern Denmark Odense Denmark
5. Copenhagen Emergency Medical Services & Danish Clinical Quality Program (RKKP), National Clinical Registries and Department of Clinical Medicine University of Copenhagen Copenhagen Denmark
6. Division of Emergency Medicine, Department of Medicine University of Toronto, Emergency Services, Sunnybrook Health Sciences Center Toronto Ontario Canada