1. Mount Sinai School of Medicine, New York
2. James J. Peters Veterans Affairs Medical Center, Bronx, New York
3. University of California, San Francisco
4. Group Health Research Institute, Seattle, Washington
5. University of Wisconsin, Madison
6. Columbia University, New York, New York
7. University of Georgia, Athens
8. Pima County Department of Health, Tucson, Arizona
9. Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts
10. Independent consultant, Washington, DC
11. Duke University, Durham, North Carolina
12. Fairfax Family Practice, Fairfax, Virginia
13. Virginia Commonwealth University, Richmond
14. New York University, New York
15. Veterans Affairs Palo Alto Health Care System, Palo Alto, California
16. Stanford University, Stanford, California
17. University of Washington, Seattle
18. Brown University, Providence, Rhode Island
19. University of North Carolina, Chapel Hill