1. Saint Luke’s Mid America Heart Institute, Kansas City, Missouri
2. University of Missouri, Kansas City
3. Duke University, Durham, North Carolina
4. Baylor Scott and White Health, Plano, Texas
5. Lahey Hospital and Medical Center, Boston, Massachusetts
6. Baim Institute for Clinical Research, Boston, Massachusetts
7. Saint Vincent Medical Center, Indianapolis, Indiana
8. University of Colorado School of Medicine, Aurora