1. Department of Physiology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
2. Management and Development for Health, HIV/AIDS Care and Treatment Program, Dar es Salaam, Tanzania
3. Africa Academy for Public Health, P.O. Box 79810, Dar es Salaam, Tanzania
4. Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA
5. Department of Biostatistics, Harvard TH Chan School of Public Health, Boston, MA, USA
6. Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
7. Tufts University School of Medicine, Boston, MA, USA
8. Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
9. Department of Global Health and Population, Harvard TH Chan School of Public Health, Boston, MA, USA
10. Department of Psychiatry and Mental Health, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
11. Department of Internal Medicine, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania