1. Department of Cardiology, The Heart Center, University Hospital of Copenhagen Rigshospitalet , Blegdamsvej 9, 2100 København, Copenhagen, Denmark
2. Department of Cardiology, Copenhagen University Hospital Bispebjerg and Frederiksberg , Nordre Fasanvej 57, 2000 Frederiksberg, Copenhagen, Denmark
3. Department of Cardiology, Copenhagen University Hospital Herlev and Gentofte , Gentofte Hospitalsvej 1, 2900 Hellerup, Herlev, Denmark
4. Department of Cardiology, Zealand University Hospital , Sygehusvej 10, 4000 Roskilde, Denmark
5. Clinical Institutes, Copenhagen and Aalborg Universities , A. C. Meyers Vænge 15, 2450 København, Aalborg, Denmark
6. Department of Emergency Medicine, Copenhagen University Hospital Herlev and Gentofte , Gentofte Hospitalsvej 1, 2900 Hellerup, Herlev, Denmark
7. Department of Clinical Medicine, University of Copenhagen , Nørregade 10, 1165 København, Copenhagen, Denmark