1. Department of Clinical Biochemistry, Svendborg Hospital, Svendborg, Denmark;
2. Department of Nuclear Medicine, Odense University Hospital, Odense C, Denmark;
3. Centre of Health Economics Research, University of Southern Denmark, Odense M, Denmark;
4. Department of Cardiology, Odense University Hospital, Odense C, Denmark;
5. Department of Cardiology, Svendborg Hospital, Svendborg, Denmark;
6. Department of Cardiology, Lillebaelt Hospital, Vejle, Denmark;
7. Department of Cardiology, Hospital of Southwest Denmark, Esbjerg, Denmark;
8. Institute of Regional Health Research, University of Southern Denmark, Odense M, Denmark