1. CHERISH programme, School of Primary Care, Population Sciences and Medical Education, Faculty of Medicine, University of Southampton, Southampton, UK
2. Faculty of Commerce, Assiut University, Assiut, Egypt
3. Human Sciences Research Council, Sweetwaters, Pietermaritzburg, South Africa
4. Catholic University of America, Washington DC, USA
5. School of Geography and Sustainable Development, University of St. Andrews, UK
6. Department of Social Statistics & Demography, Faculty of Social Sciences, University of Southampton, Southampton, UK
7. SAMRC-WITS Developmental Pathways for Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
8. Africa Health Research Institute, KwaZulu-Natal, South Africa