1. Department of Epidemiology; Brown School of Public Health; Providence RI USA
2. Department of Internal Medicine, Yale School of Medicine; Yale University; New Haven CT USA
3. Yale Center for Interdisciplinary Research on AIDS, Yale School of Public Health; Yale University; New Haven CT USA
4. Yale University School of Medicine; New Haven CT USA
5. APT Foundation Pain Treatment Services; New Haven CT USA
6. Pain Research, Informatics, Multi-morbidities and Education (PRIME) Center, VA, Connecticut Healthcare System; West Haven CT USA
7. Department of Emergency Medicine; University of California, Davis; Sacramento CA USA
8. Institute for Health, Health Care Policy, and Aging Research, Rutgers University; New Brunswick NJ USA
9. Yale Center for Medical Informatics, Yale School of Medicine; New Haven CT USA
10. Center for Health Equity Research and Promotion (CHERP) & Mental Illness Research Education and Clinical Center (MIRECC); VA Pittsburgh Healthcare System and University of Pittsburgh; Pittsburgh PA USA
11. VA Connecticut Healthcare System; West Haven CT USA
12. Departments of Psychiatry, Neurology and Psychology; Yale University; New Haven CT USA
13. Department of Epidemiology, Mailman School of Public Health; Columbia University; New York NY USA