1. Early Start and School of Education University of Wollongong Wollongong NSW Australia
2. Division of Exercise Science and Sports Medicine, Department of Human Biology University of Cape Town Cape Town South Africa
3. Department of Education University of Oxford Oxford United Kingdom
4. Department of Experimental Psychology University of Oxford Oxford United Kingdom
5. MRC/Wits Developmental Pathways for Health Research Unit, Faculty of Health Sciences University of the Witwatersrand Johannesburg South Africa
6. MRC/Wits Rural Public Health and Health Transitions Research Unit, School of Public Health University of the Witwatersrand Johannesburg South Africa
7. Umeå Centre for Global Health Research Umeå University Umeå Sweden
8. INDEPTH Network Accra Ghana