1. Department of Cardiology, The Heart Centre, Copenhagen University Hospital Rigshospitalet, Blegdamsvej 9, Copenhagen East, Denmark
2. Department of Clinical Epidemiology, Aalborg University Hospital, Forskningens Hus, Sdr. Skovvej 15, Aalborg, Denmark
3. Department of Anaesthesiology and Intensive Care, Aalborg University Hospital, Søndre Skovvej 15, Aalborg, Denmark
4. Emergency Medical Services, the Capital Region, University of Copenhagen, Denmark
5. Department of Clinical Medicine, Center for Prehospital and Emergency Research, Aalborg University, Forskningens Hus, Sdr. Skovvej 15, Aalborg, Denmark
6. Department of Cardiology, Aalborg University Hospital, Hobrovej 18-22, Aalborg, Denmark