1. University of California, San Francisco
2. Group Health Research Institute, Seattle, Washington
3. University of Iowa, Iowa City
4. Columbia University, New York, New York
5. State University of New York Upstate Medical University, Syracuse
6. Pima County Department of Health, Tucson, Arizona
7. Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts
8. University of Louisville, Kentucky
9. Duke University, Durham, North Carolina
10. Fairfax Family Practice Residency, Fairfax, Virginia11Virginia Commonwealth University, Richmond
11. Yale University, New Haven, Connecticut
12. University of Alabama at Birmingham
13. University of California, Los Angeles
14. Veterans Affairs Palo Alto Health Care System, Palo Alto, California16Stanford University, Stanford, California
15. University of Washington, Seattle
16. Brown University, Providence, Rhode Island
17. University of North Carolina, Chapel Hill
18. Mount Sinai School of Medicine, New York, New York21James J. Peters Veterans Affairs Medical Center, Bronx, New York