1. Department of Nutrition Harvard T.H. Chan School of Public Health Boston Massachusetts USA
2. Department of Global Health and Population Harvard T.H. Chan School of Public Health Boston Massachusetts USA
3. Department of Biostatistics Harvard T.H. Chan School of Public Health Boston Massachusetts USA
4. Department of Microbiology and Immunology Muhimbili University of Health and Allied Sciences Dar es Salaam Tanzania
5. Management and Development for Health (MDH) Dar es Salaam Tanzania
6. Department of Internal Medicine Muhimbili University of Health and Allied Sciences Dar es Salaam Tanzania
7. Department of Epidemiology Harvard T.H. Chan School of Public Health Boston Massachusetts USA