1. Boston University School of Medicine; Boston MA
2. Yale University School of Medicine; New Haven CT
3. Philadelphia VA Medical Center; University of Pennsylvania School of Medicine; Philadelphia PA
4. VA Connecticut Healthcare System; West Haven CT
5. University of Pittsburgh Schools of Medicine and Public Health; Pittsburgh PA
6. Weill Cornell Medical College; NY
7. VA Pittsburgh Healthcare System; PA
8. Hamad Healthcare Quality Institute, Hamad Medical Corporation; Doha Qatar
9. VA Medical Center; Washington DC
10. George Washington University School of Medicine and Public Health; Washington DC
11. Atlanta VA Medical Center; Atlanta GA
12. Emory University School of Medicine; Atlanta GA
13. Rollins School of Public Health; Atlanta GA
14. VA Greater Los Angeles Healthcare System; Los Angeles CA
15. David Geffen School of Medicine; University of California; Los Angeles, Los Angeles CA
16. Michael E. DeBakey VA Medical Center; Houston TX
17. Baylor College of Medicine; Houston TX
18. Harbor-UCLA Medical Center; Los Angeles CA
19. Los Angeles Biomedical Research Institute; Los Angeles CA
20. Vanderbilt University School of Medicine; Nashville TN
21. Boston University School of Public Health; Boston MA
22. Boston Medical Center; Boston MA
23. Yale University School of Public Health; New Haven CT
24. Nashville Veterans Affairs Medical Center; Nashville TN
25. Tennessee Valley Healthcare System; Nashville TN