1. ENRM VA Medical Center Bedford MA United States
2. School of Public Health Boston University Boston MA United States
3. VA Puget Sound Health Care System Seattle WA United States
4. VA Eastern Colorado Health Care System Aurora CO United States
5. University of Colorado Anschutz Medical Campus Aurora CO United States
6. VA Greater Los Angeles Healthcare System Los Angeles CA United States
7. Fielding School of Public Health University of California Los Angeles Los Angeles CA United States
8. University of Washington Seattle WA United States