1. Program in Addiction Medicine, Yale School of Medicine, New Haven, Connecticut
2. Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
3. Center for Interdisciplinary Research on AIDS, Yale School of Public Health, New Haven, Connecticut
4. Yale Center for Analytic Sciences, Yale School of Public Health, New Haven, Connecticut
5. Department of Emergency Medicine, Yale School of Medicine, New Haven, Connecticut
6. Department of Biostatistics, Yale School of Public Health, New Haven, Connecticut
7. VA Connecticut Healthcare System, West Haven
8. Department of Medicine, Brown University, Providence, Rhode Island
9. Institute for Collaboration on Health, Intervention, and Policy (InCHIP), University of Connecticut, Storrs
10. University of Washington and VA Puget Sound, Seattle
11. SUNY Downstate, Brooklyn, New York
12. Department of Psychiatry, Yale School of Medicine, New Haven, Connecticut