1. Beaumont Hospital Royal Oak Royal Oak MI
2. Oakland University William Beaumont School of Medicine Auburn Hills MI
3. Delray Medical Center Delray Beach FL
4. The Heart Hospital Baylor Plano Plano TX
5. Pima Heart and Vascular Tucson Medical Center Tucson AZ
6. Ascension St. Mary's Hospital Saginaw MI
7. Bern University Hospital Bern Switzerland
8. Massachusetts General Hospital Boston MA
9. University of Florida Gainesville FL
10. Université Laval/Québec Heart and Lung Institute Québec Canada