| Affiliation: | 1. Department of Anaesthesia, Centre of Head and Orthopaedics 4231, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark;2. The Research Unit for General Practice and Section of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark;3. Department of Cardiology, The Heart Centre, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark;4. Prehospital Centre, Slagelse, Region Zealand, Denmark;5. Emergency Medical Services Copenhagen, University of Copenhagen, Ballerup, Denmark;6. National Helicopter Emergency Medical Services, Aarhus, Denmark |
