1. Department of Medicine Ascension Saint John Hospital Detroit Michigan
2. Department of Medicine Albert Einstein Medical Center Philadelphia Pennsylvania
3. Minneapolis Heart Institute Abbott Northwestern Hospital Minneapolis Minnesota
4. Division of Cardiovascular Medicine Department of Medicine, Hennepin Healthcare Minneapolis Minnesota
5. Cardiovascular Institute The Warren Alpert Medical School of Brown University Providence Rhode Island
6. Department of Cardiovascular Medicine University of Texas Medical Branch Galveston Texas
7. Division of Cardiology Massachusetts General Hospital and Harvard Medical School Boston Massachusetts
8. Section of Cardiovascular Medicine Yale New Haven Hospital New Haven Connecticut
9. Division of Cardiology Banner University Medical Center/University of Arizona Phoenix Arizona
10. Division of Cardiovascular Diseases Mayo Clinic Phoenix Arizona
11. Division of Cardiology Department of Medicine, Ascension Saint John Hospital Detroit Michigan