1. Department of Cardiology; Oslo University Hospital Rikshospitalet; Oslo Norway
2. Department of Cardiology; Sahlgrenska University Hospital; Gothenburg Sweden
3. Department of Cardiology; Rigshospitalet; Copenhagen Denmark
4. Department of Cardiology; Aarhus University Hospital; Aarhus Denmark
5. The Section for Heart Failure and Valvular Disease, VO. Heart and Lung medicine; Skåne University Hospital and Department of Clinical Sciences Lund, Cardiology, Lund University; Lund Sweden
6. Department of Cardiology and Clinical Physiology; Institute of Medicine and Health Sciences; Linkőping University; Linkőping Sweden
7. Transplant Institute; Sahlgrenska University Hospital; Gothenburg Sweden
8. Novartis Norge AS; Oslo Norway
9. Center for Heart Failure Research; Faculty of Medicine; University of Oslo; Oslo Norway