1. Department of Public Health Education, School of Health and Human Sciences, University of North Carolina at Greensboro, Greensboro, North Carolina, USA.
2. Department of Prevention and Community Health, Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, USA.
3. HIV Vaccine Research Unit, Instituto Dermatológico y Cirugía de Piel Dr. Huberto Bogaert Díaz, Santo Domingo, Dominican Republic.
4. Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.