1. Department of Psychiatry, Washington University School of Medicine, St Louis, Missouri
2. Department of Social Work, Washington University in St Louis, St Louis, Missouri
3. Department of Psychiatry, College of Physicians and Surgeons of Columbia University, New York, New York
4. Division of Substance Use Disorders, New York State Psychiatric Institute, New York, New York
5. Department of Family and Community Medicine, St Louis University, St. Louis, Missouri
6. Department of Health and Outcomes Research, St. Louis University, St Louis, Missouri