1. Saint Luke's Mid America Heart Institute/University of Missouri Kansas City Kansas City MO
2. Cardiovascular Research Foundation New York NY
3. Northwestern University Feinberg School of Medicine Chicago IL
4. Cleveland Clinic Cleveland OH
5. Medstar Heart and Vascular Institute and Georgetown University Washington DC
6. Columbia University Medical Center New York‐Presbyterian Hospital New York NY
7. BC Centre for Improved Cardiovascular Health Vancouver BC Canada