1. Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
2. Department of Cardiothoracic Surgery, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
3. Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
4. Department of Cardiology, Herlev-Gentofte University Hospital, Hellerup, Denmark
5. The Danish Heart Foundation, Copenhagen, Denmark
6. The National Institute of Public Health, University of Southern Denmark, Odense, Denmark