1. Tulane University School of Public Health and Tropical Medicine, Department of International Health and Development, Center for Global Health Equity, New Orleans, LA, USA
2. Universidad del Valle de Guatemala, Centro de Estudios en Salud, Guatemala City, Guatemala
3. HHS-Centers for Disease Control and Prevention/Global AIDS Program, Atlanta, GA, USA
4. HHS-Centers for Disease Control and Prevention/Global AIDS Program/Regional Office for Central America and Panama, Guatemala City, Guatemala