1. Department of Global Health, Institute for Life Course Health Research, Faculty of Medicine and Health Sciences Stellenbosch University Cape Town South Africa
2. Grow Great Campaign, DG Murray Trust Midrand South Africa
3. Division of Epidemiology and Biostatistics, School of Public Health University of Cape Town Cape Town South Africa
4. School of Nursing and Midwifery, Faculty of Medicine, Health and Life Sciences Queen's University Belfast Belfast Northern Ireland UK
5. DG Murray Trust Claremont South Africa
6. Department of Statistics University of Pretoria Pretoria South Africa