1. Yale College, New Haven, CT, United States
2. Department of Social and Behavioral Sciences, Yale School of Public Health, New Haven, CT, United States
3. Department of Ethics, Politics and Economics, Yale University, New Haven, CT, United States
4. Fundación VIHDA, Guayaquil, Ecuador
5. Center for Interdisciplinary Research on AIDS and the Department of Epidemiology of Microbial Disease, Yale School of Public Health, New Haven, CT, United States