1. Center for Child and Community Health Research (CCHR), Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, MD, USA
2. Department of Health Policy & Management, UCLA Fielding School of Public Health, Los Angeles, CA, USA
3. Department of Health, Behavior, and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
4. Chase Brexton, Baltimore, MD, USA
5. Department of Infectious Disease, Johns Hopkins School of Medicine, Baltimore, MD, USA
6. STI/HIV Program, Baltimore City Health Department, Baltimore, MD, USA
7. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA