1. Division of Nursing School of Health Sciences, City University of London LondonUK
2. Population Health Research Institute St George’s University of London LondonUK
3. The Health Foundation London UK
4. North East London NHS Foundation TrustCEME Centre‐ West Wing Rainham, EssexUK
5. St George’s University Hospitals NHS Foundation Trust LondonUK
6. NIHR Mental Health Policy Research Unit Division of Psychiatry University College London LondonUK
7. Care Policy and Evaluation Centre Department of Health Policy London School of Economics and Political Science London UK