1. University of California, San Francisco
2. Group Health Research Institute, Seattle, Washington
3. University of Iowa, Iowa City
4. Harvard Medical School, Boston, Massachusetts
5. Columbia University, New York, New York
6. University of Pennsylvania, Philadelphia
7. University of Georgia, Athens
8. Virginia Tech Carilion School of Medicine, Roanoke
9. Independent consultant, Washington, DC
10. Duke University, Durham, North Carolina
11. Fairfax Family Practice Residency, Fairfax, Virginia12Virginia Commonwealth University, Richmond
12. Yale University, New Haven, Connecticut
13. University of Alabama at Birmingham
14. University of California, Los Angeles
15. Brown University, Providence, Rhode Island
16. Boston University, Boston, Massachusetts
17. Northwestern University, Evanston, Illinois
18. University of Hawaii, Manoa