1. HHS-Centers for Disease Control and Prevention/Division of Global HIV/AIDS, Atlanta, Georgia.
2. Universidad del Valle de Guatemala, Centro de Estudios en Salud, Guatemala City, Guatemala.
3. Ministry of Health of Honduras, Tegucigalpa, Honduras.
4. HHS-Centers for Disease Control and Prevention/Division of Global HIV/AIDS/Regional Office for Central America and Panama, Guatemala City, Guatemala.
5. Tephinet, Inc. Atlanta, Georgia.