1. Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, UK
2. Department of Women and Children’s Health, School of Life Course Sciences, King’s College London, London, UK
3. School of Health Sciences, University of Surrey, Guildford, UK
4. NCT, London, UK
5. King’s Health Economics, Health Service and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
6. Faculty of Science, University of Nottingham, Nottingham, UK
7. Guy’s and St Thomas’ NHS Foundation Trust, London, UK
8. Public Health, London Borough of Lambeth, London, UK
9. Population Health Research Institute, St George’s, University of London, London, UK
10. Institute for Social Marketing and Health, University of Stirling, Stirling, UK