1. Duke University Medical Center, Durham, North Carolina
2. Stanford University Medical Center, Palo Alto, California
3. Penn State Hershey Medical Center, Hershey, Pennsylvania
4. Brigham and Women's Hospital, Boston, Massachusetts
5. Mayo Clinic, Rochester, Minnesota
6. University of Illinois at Chicago/Jesse Brown VA Medical Center, Chicago, Illinois
7. First Coast Heart and Vascular Center, Jacksonville, Florida
8. G.V. (Sonny) Montgomery VA Medical CenterJackson, Mississippi.
9. Stern Cardiovascular Foundation, Memphis, Tennessee
10. Reid Heart Center at FirstHealth of the Carolinas, Pinehurst, North Carolina
11. Deborah Heart & Lung Institute, Browns Mills, New Jersey
12. Lahey Clinic, Burlington, Massachusetts
13. Geisinger Medical Center, Danville, Pennsylvania
14. Apex Heart Institute, Seth N.H.L. Municipal Medical College, Ahmedabad, Gujarat, India
15. The Wright Center for Graduate Medical Education, The Commonwealth Medical College, Scranton, Pennsylvania