1. University of Massachusetts Amherst, Department of Health Promotion and Policy, 715 N. Pleasant Street Amherst, MA 01003;
2. RAND Corporation and Pardee RAND Graduate School, 1776 Main Street, Santa Monica, California 90401;;
3. University of California, San Francisco, Department of Medicine, 505 Parnassus Ave, San Francisco, CA 94143;;.
4. Universidad Autónoma de Santo Domingo, Facultad de Ciencias de la Salud, Av. Alma Mater, Santo Domingo, Dominican Republic;;
5. Consejo Nacional de VIH/SIDA (CONAVIHSIDA), Santo Domingo, Dominican Republic;
6. Unidad de Vacunas e Investigación, Instituto Dermatológico, Dominicano y Cirugía de Piel Dr. Huberto Bogaert Diaz, Santo Domingo, Dominican Republic;
7. World Food Programme, Regional Office for Latin America and the Caribbean, Panama City, Panama;