1. Department of Cardiology Stavanger University Hospital Stavanger Norway
2. Institute of Clinical Sciences, University of Bergen Bergen Norway
3. Norwegian Registry of Invasive Cardiology (NORIC) Haukeland University Hospital Bergen Norway
4. Department of Heart Disease Haukeland University Hospital Bergen Norway
5. Department of Cardiology Oslo University Hospital, Rikshospitalet Oslo Norway
6. Department of Cardiology Oslo University Hospital Ullevål, Oslo Norway
7. Department of Cardiology University Hospital of North Norway Tromsø Norway
8. Department of Cardiology Akershus University Hospital Lørenskog Norway
9. Clinic for Heart Disease St. Olav’s University Hospital Trondheim Norway
10. LHL Hospital Gardermoen Norway
11. Hospital of Southern Norway Arendal Norway
12. Division of Internal Medicine Nordlandssykehuset Bodø Norway