1. Division of Cardiology; David Geffen School of Medicine at UCLA; Los Angeles California
2. Columbia University Medical Center/New York-Presbyterian Hospital and the Cardiovascular Research Foundation; New York New York
3. Mount Sinai Hospital; New York New York
4. Shonan Kamakura General Hospital; Kamakura Japan
5. UC San Diego Medical Center; La Jolla California
6. Metropolitan Heart and Vascular Institute, Mercy Hospital; Roslyn New York
7. St. Francis Hospital; Roslyn New York