1. The Heart Centre; Rigshospitalet; Copenhagen University Hospital; Copenhagen Denmark
2. Department of Cardiology; Gentofte University Hospital; Hellerup Denmark
3. Yale University School of Nursing; Orange CT USA
4. Centre for Health Services and Nursing Research; University of Leuven; Leuven Belgium
5. Institute of Health and Care Science; University of Gothenburg; Göteborg Sweden
6. Research Unit; Gentofte University Hospital; Hellerup Denmark