1. Holy Name Medical Center Teaneck New Jersey
2. St. Louis Heart and Vascular St Louis Missouri
3. Medical University of Graz Graz Austria
4. Orlando Heart Specialists Orlando Florida
5. Cardiovascular Solutions Institute Bradenton Florida
6. Arkansas Heart Hospital Little Rock Arkansas
7. Maria Cecilia Hospital Cotignola Italy
8. Gavazzeni Humanitas Hospital Bergamo Italy
9. North Florida Regional Medical Center Gainesville Florida
10. Wellmont CVA Heart Institute Kingsport Tennessee
11. Policlinico Abano Terme Abano Terme Italy
12. Midwest Cardiovascular Research Foundation Davenport Iowa