1. Department of Population, Family and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
2. Department of Human Development and Family Studies, Michigan State University, East Lansing, Michigan.
3. Division of Global Public Health, Department of Medicine, Center on Gender Equity and Health, University of California, San Diego School of Medicine, La Jolla, California.
4. Department of Behavioral and Community Health Sciences, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania.
5. Department of Pediatrics, University of California, Davis School of Medicine, Sacramento, California.
6. Center for Health Equity, Research, and Promotion, VA Pittsburgh Health Care System, Pittsburgh, Pennsylvania.
7. Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
8. Division of Adolescent and Young Adult Medicine, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.