1. Department of Cardiology Oslo University Hospital Oslo Norway
2. Institute for Clinical Medicine Faculty of Medicine, University of Oslo Oslo Norway
3. Department of Respiratory Medicine Oslo University Hospital Oslo Norway
4. Department of Hematology and Oncology, Division of Pediatric and Adolescent Medicine Oslo University Hospital Oslo Norway
5. Department of Pediatric Research, Division of Pediatric and Adolescent Medicine Oslo University Hospital Oslo Norway
6. Department of Hematology Oslo University Hospital Oslo Norway
7. KG Jebsen Center for Cardiac Research University of Oslo Oslo Norway
8. Center for Heart Failure Research Oslo University Hospital Oslo Norway
9. Department of Circulation and Imaging, Faculty of Medicine and Health Science Norwegian University of Science and Technology Trondheim Norway
10. Clinic of Cardiology St. Olavs Hospital Trondheim Norway