1. Child Health and Development Center, Makerere University, Kampala, Uganda
2. Faculty of Medicine, Memorial University of Newfoundland, St. John's, Canada
3. African Population and Health Research Center, Nairobi, Kenya
4. School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
5. School of Public Health and Community Medicine, University of Gothenburg, Gothenburg, Sweden