1. Klinikum KasselKassel Germany
2. Department of Cardiology, University Hospital FrankfurtGoethe UniversityFrankfurt Germany
3. Semmelweis UniversityBudapest Hungary
4. University of Rochester Medical CenterRochester New York
5. Leviev Heart Center, Sheba Medical CenterTel Hashomer Israel
6. Ambulantes Herzzentrum KasselKassel Germany
7. Centre Hospitalier UniversitaireRennes France
8. Hospital de Santa Creu I Saint PauBarcelona Spain
9. Institute for Clinical and Experimental MedicinePrague Czech Republic
10. Institute Universitaire de Cardiologie et de Pneumologie deQuebec QC Canada
11. Elisabeth KrankenhausRecklinghausen Germany
12. Regiomed KlinikenCoburg Germany
13. Leiden University Medical CenterLeiden the Netherlands
14. Karolinska HospitalStockholm Sweden
15. Boston ScientificMinneapolis Minnesota
16. Boston ScientificBrussels Belgium
17. Population Health Research InstituteHamilton Canada
18. Mc Master UniversityHamilton Canada