1. Sentara Heart Hospital, Division of Cardiology, Advanced Heart Failure Center and Eastern Virginia Medical School Norfolk Virginia
2. Department of CardiologyZucker School of Medicine at Hofstra/Northwell, North Shore University Hospital Manhasset New York
3. Department of Internal MedicineLSU Health School of Medicine Shreveport Louisiana
4. Cardiovascular Research Foundation New York City New York
5. Baylor University Medical Center Dallas Texas
6. Lindner Research Center at the Christ Hospital Cincinnati Ohio
7. Cooper University Hospital Camden New Jersey
8. The CardioVascular Center, Tufts Medical Center Boston Massachusetts
9. Henry Ford Health System Detroit Michigan
10. Virginia Commonwealth University Health System Richmond Virginia
11. Heart Center Leipzig at University of Leipzig, Department of Internal Medicine/Cardiology Leipzig Germany
12. Department of Critical Care Medicine and Division of CardiologyUniversity of Alberta Edmonton Canada
13. Westchester Medical Center and New York Medical College Valhalla New York