1. Division of Cardiovascular Medicine UC Davis Medical Center Sacramento California USA
2. Courant Institute of Mathematical Sciences New York University New York New York USA
3. David Geffen School of Medicine UCLA Medical Center Los Angeles California USA
4. UAB School of Medicine University of Alabama at Birmingham Birmingham Alabama USA
5. Cardiology Department Westchester Medical Center New York New York USA
6. Earle A. Chiles Research Institute, Providence Portland Oregon USA
7. Department of Surgery Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA