1. Care Policy and Evaluation Centre The London School of Economics and Political Science London UK
2. NIHR Policy Research Unit in Health and Social Care Workforce London UK
3. Institute of Health Informatics, University College London Department of Epidemiology and Public Health, Institute of Epidemiology and Health Care London UK
4. Community and Primary Care Research Group, Peninsula School of Medicine University of Plymouth, ITTC Plymouth UK
5. Blizard Institute, Queen Mary University of London London UK
6. Pathway and the Faculty for Homeless and Inclusion Health London UK
7. National Addiction Centre Institute of Psychiatry, Psychology & Neuroscience, King's College London, Addictions Sciences Building London UK
8. Department of Community Nursing and Community Health Glasgow Caledonian University Glasgow UK