1. Africa Academy for Public Health, Dar es Salaam, Tanzania
2. Department of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, MA, USA
3. Management and Development for Health, Dar es Salaam, Tanzania
4. Department of Psychiatry and Mental Health, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
5. Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, USA