Affiliation: | (1) Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD and TB Prevention, Centers for Disease Control and Prevention, Atlanta, USA;(2) Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, USA;(3) Department of Behavioral Sciences and Health Education, Emory University, Atlanta, USA;(4) Operations Research, Family Health International, Harare, Zimbabwe |