1. Department of Psychiatry School of Medicine, Addiction Center University of Michigan Ann Arbor MI USA
2. Injury Prevention Center University of Michigan Ann Arbor MI USA
3. Center for Sexuality and Health Disparities University of Michigan Ann Arbor MI USA
4. School of Nursing University of Pennsylvania Philadelphia PA USA
5. School of Nursing University of Michigan Ann Arbor MI USA
6. Rollins School of Public Health Emory University Atlanta GA USA
7. Division of Clinical & Health Services Research National Institute on Minority Health and Health DisparitiesNational Institutes of Health Bethesda MD USA