1. Department of Internal Medicine; Muhimbili University of Health and Allied Sciences; Dar es Salaam Tanzania
2. Department of Epidemiology and Biostatistics; Muhimbili University of Health and Allied Sciences; Dar es Salaam Tanzania
3. Department of Epidemiology and Biostatistics; Harvard School of Public Health; Boston MA USA
4. Management Development for Health; Dar es Salaam Tanzania
5. Department of Community Health; Muhimbili University of Health and Allied Sciences; Dar es Salaam Tanzania
6. Feinberg School of Medicine; Northwestern University; Boston MA USA
7. Department of Nutrition; Harvard School of Public Health; Boston MA USA
8. Department of Global Health and Population; Harvard School of Public Health; Boston MA USA