1. University of California, San Francisco
2. Kaiser Permanente Washington Health Research Institute, Seattle
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. Virginia Tech Carilion School of Medicine, Roanoke
8. Duke University, Durham, North Carolina
9. Fairfax Family Practice Residency, Fairfax, Virginia
10. Virginia Commonwealth University, Richmond
11. Yale University, New Haven, Connecticut
12. University of Alabama at Birmingham
13. University of California, Los Angeles
14. University of Washington, Seattle
15. Brown University, Providence, Rhode Island
16. Boston University, Boston, Massachusetts
17. Northwestern University, Evanston, Illinois
18. University of Hawaii, Honolulu
19. Pacific Health Research and Education Institute, Honolulu, Hawaii