1. Department of Cardiology, Oslo University Hospital Ulleval, Oslo, Norway
2. Institute of Clinical Medicine, University of Oslo, Oslo, Norway
3. Department of Research and Development, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway
4. Department of Anaesthesia and Intensive Care, Haukeland University Hospital, Bergen, Norway
5. Department of Clinical Medicine, University of Bergen, Bergen, Norway
6. Department of Medical Biochemistry and Pharmacology, Haukeland University Hospital, Bergen, Norway
7. Department of Heart Disease, Haukeland University Hospital, Bergen, Norway
8. Department of Clinical Science, University of Bergen, Bergen, Norway
9. Clinic of Cardiology, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
10. Department of Circulation and Medical Imaging, NTNU, Norwegian University of Science and Technology, Trondheim, Norway
11. Department of Orthopaedic Surgery, Østfold Hospital Trust, Grålum, Norway
12. Department of Cardiology and Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Switzerland
13. Department of Cardiology, Akershus University Hospital, Lørenskog, Norway