1. CLOSER, UCL Institute of Education, University College London, London, UK
2. Institute for Social and Economic Research, University of Essex, Colchester, UK
3. Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
4. Centre for Longitudinal Studies, UCL Institute of Education, University College London, London, UK
5. MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
6. NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
7. NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
8. UK Data Archive, University of Essex, Colchester, UK
9. Institute for Fiscal Studies, London, UK
10. MRC Unit for Lifelong Health and Ageing at UCL, University College London, London, UK
11. ALSPAC, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
12. International Centre for Lifecourse Studies in Society and Health (ICLS), University College London, London, UK
13. British Library, London, UK
14. UCL Institute of Education, University College London, London, UK