1. Women's College Hospital; Toronto ON Canada
2. University Health Network/Mount Sinai Hospital; Toronto ON Canada
3. University of Ottawa Heart Institute; Ottawa ON Canada
4. Hospital Universitario Txagorritxu; Vitoria Spain
5. Queen's University; Kingston ON Canada
6. Vancouver General Hospital; University of British Columbia; Vancouver BC Canada
7. McGill University Health Centre; Montreal QC Canada
8. St Michael's Hospital; Toronto ON Canada
9. Instituto do Coração do Hospital das Clínicas da FMUSP; Sao Paulo Brazil
10. Hôpital Hôtel-Dieu du CHUM; Université de Montréal; Montreal QC Canada
11. Capital District Health Authority; Halifax NS Canada
12. Institut Universitaire de Cardiologie et de Pneumologie de Québec; Quebec City QC Canada
13. Universitätsklinikum Regensburg; Regensburg Germany
14. University of Arizona College of Medicine; Tucson AZ USA
15. Groupe Hospitalier Pitie-Salpetriere Charles Fox; Paris France
16. Juntendo University Hospital; Tokyo Japan
17. Ospedale San Luca; Milan Italy