1. Department of Cardiology, Gentofte Hospital, Hellerup, Denmark
2. Duke Clinical Research Institute, Durham, North Carolina
3. Department of Cardiology, University Hospital of Copenhagen, Copenhagen, Denmark
4. Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
5. Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
6. Department of Epidemiology, Aalborg University Hospital, Aalborg, Denmark
7. Department of Biostatistics, Aalborg University Hospital, Aalborg, Denmark
8. Danish Heart Foundation, Copenhagen, Denmark
9. National Institute of Public Health, University of Southern Denmark, Odense, Denmark