1. Duke University Medical Center, Durham, NC
2. Duke Clinical Research Institute, Durham, NC
3. UCLA Division of Cardiology, Los Angeles, CA
4. Mayo Clinic, Rochester, MN
5. Boston University School of Medicine, Boston, MA
6. Lankenau Institute for Medical Research, Wynnewood, PA
7. Stanford University School of Medicine, Palo Alto, CA
8. Penn State University School of Medicine, Hershey, PA
9. Columbia University College of Physicians and Surgeons, New York, NY
10. Janssen Pharmaceuticals, Inc., Raritan, NJ