1. University of California, Davis, California.
2. Christ Community Health Services, Memphis, Tennessee.
3. Fox Valley Cardiovascular Consultants, Aurora, Illinois.
4. Columbia University Medical Center, New York, New York.
5. Columbia University, College of Physicians & Surgeons, New York, New York.
6. University of Minnesota, Minneapolis, Minnesota.
7. Brigham and Women's/Faulkner Hospital, Boston, Massachusetts.
8. Department of Health and Human Services, Office on Women's Health, Washington, District of Columbia.
9. Yale New Haven Hospital, New Haven, Connecticut.