1. Postdoctoral Fellow, Department of Epidemiology; Johns Hopkins Bloomberg School of Public Health; and can receive mail at P.O. Box 1441 Iringa Tanzania
2. Ethnographer; Muhimbili University of Health and Allied Sciences; Dar es Salaam Tanzania
3. Associate Professor, Department of Population Family, and Reproductive Health; Johns Hopkins Bloomberg School of Public Health
4. Professor and Director, Social and Behavioral Interventions Program, Department of International Health; Johns Hopkins Bloomberg School of Public Health
5. Professor, Department of Epidemiology; Johns Hopkins Bloomberg School of Public Health
6. Associate Professor, Department of Health, Behavior and Society; Johns Hopkins Bloomberg School of Public Health