1. Department of Medicine, Sjaellands University Hospital, Sygehusvej 10, Roskilde, Denmark
2. Department of Cardiology, Herlev-Gentofte University Hospitals, Kildegaardsvej 28, Hellerup, Denmark
3. National Institute of Public Health, Øster Farimagsgade 5 A, Copenhagen, Denmark
4. Department of Cardiology, University of Southern Denmark, Sdr. Boulevard 29, Odense, Denmark
5. The Danish Heart Foundation, Vognmagergade 7, 3. sal, Copenhagen, Denmark
6. Department of Cardiology, Odense University Hospital, Kløvervænget 47, Odense, Denmark
7. Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, Aarhus, Denmark
8. Department of Cardiology, Rigshospitalet, Blegdamsvej 9, Copenhagen, Denmark
9. Institute of Health, Science and Technology, Aalborg University, Niels Jernes Vej 10, Aalborg and Aalborg University Hospital, Hobrovej 18-22, 9100 Aalborg, Denmark
10. Department of Cardiology, Aalborg University Hospital, Hobrovej 18-22, Aalborg, Denmark