1. Department of Medicine, Karolinska Institute Karolinska University Hospital Solna Sweden
2. Heart and Lung Center Helsinki University Hospital Helsinki Finland
3. Department of Cardiology Oslo University Hospital Rikshospitalet Oslo Norway
4. Department of Cardiology Rigshospitalet Copenhagen Denmark
5. Pfizer Denmark Ballerup Denmark
6. Pfizer Finland Helsinki Finland
7. WW Projects Copenhagen Denmark
8. Department of Cardiology Aarhus University Hospital Aarhus Denmark