1. Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 3, København Ø, Denmark
2. Department of Cardiology, Copenhagen University Hospital, Herlev and Gentofte, Kildegaardsvej 28, Hellerup, Denmark
3. The Danish Heart Foundation, Vognmagergade 7, Copenhagen, Denmark
4. The National Institute of Public Health, University of Southern Denmark, Øster Farimagsgade 5A, Copenhagen, Denmark
5. Institute of Health, Science and Technology, Aalborg University, Niels Jernes Vej 12, Aalborg Ø, Denmark
6. Aalborg University Hospital, Unit of Epidemiology and Biostatistics, Aalborg, Denmark