1. Population Health Research Institute, St George’s, University of London, UK
2. Middlesex University London, UK
3. The Health Foundation, London, UK
4. North East London NHS Foundation Trust, Goodmayes Hospital, Ilford, UK
5. St George’s University Hospitals NHS Foundation Trust, London, UK
6. NIHR Mental Health Policy Research Unit, Division of Psychiatry, University College London – Bloomsbury, UK
7. NHS England and NHS Improvement, London, UK
8. Care Policy and Evaluation Centre, Department of Health Policy, London School of Economics and Political Science, UK
9. School of Health and Psychological Sciences, City, University of London, London, UK