1. Institute for Behavioral Health, Schneider Institutes for Health Policy, Heller School for Social Policy and Management, Brandeis University, Waltham, Massachusetts, USA
2. Psychology Service, Bedford Department of Veterans Affairs Medical Center, Bedford, Massachusetts, USA
3. Primary Care Service, Bedford Department of Veterans Affairs Medical Center, Bedford, Massachusetts, USA
4. Department of Psychiatry, University of Connecticut School of Medicine, Farmington, Connecticut, USA
5. Department of Community Health Sciences, Boston University School of Public Health, Boston, Massachusetts, USA
6. Clinical Addiction Research and Education (CARE) Unit, Section of General Internal Medicine, Department of Medicine, Boston Medical Center and Boston University School of Medicine, Boston, Massachusetts, USA