1. SAMRC/Wits Developmental Pathways for Health Research Unit, Department of Paediatrics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
2. Department of Biokinetics, Recreation and Sports Science, Faculty of Health Sciences, University of Venda, Thohoyandou, South Africa
3. Brain and Mind Institute, Aga Khan University, Nairobi, Kenya
4. Medical Research Council Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
5. Primary Care Population Sciences and Medical Education (PPM), Faculty of Medicine, University of Southampton, Southampton, UK
6. School of Health Sciences, Faculty of Environmental and Life Sciences, University of Southampton, Southampton, UK
7. Institute for Developmental Science and Global Health Research Institute, School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK