1. a Department of International Health , Johns Hopkins University Bloomberg School of Public Health , MD , Baltimore
2. b Makerere University , Kampala
3. c Institute of Public Health , Kampala
4. d Department of Population Health and Family Sciences , Johns Hopkins University Bloomberg School of Public Health , MD , Baltimore
5. f Mailman School of Public Health, Center for Population and Family Health , Columbia University , New York
6. e Department of Health Policy and Management , Johns Hopkins University Bloomberg School Public Health , MD , Baltimore