1. Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
2. Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
3. New York City Department of Health and Mental Hygiene, Queens, NY, USA
4. Department of Sociomedical Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
5. School of Medicine, Institute for Global Health and Infectious Diseases, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA