1. Department of Family and Community Health, School of Nursing University of Pennsylvania Philadelphia Pennsylvania USA
2. The School of Nursing and The Center for Sexuality and Health Disparities University of Michigan Ann Arbor Michigan USA
3. Department of Psychiatry, School of Medicine Addiction Center Ann Arbor Michigan USA
4. Injury Prevention Center University of Michigan Ann Arbor Michigan USA
5. Rollins School of Public Health Emory University Atlanta Georgia USA
6. Emory University School of Medicine Emory University Atlanta Georgia USA
7. School of Medicine University of North Carolina—Chapel Hill Chapel Hill North Carolina USA
8. Milken Institute School of Public Health George Washington University Washington District of Columbia USA
9. Department of Psychology San Diego State University San Diego California USA