1. Division of Psychiatry and Applied Psychology, University of Nottingham, Nottingham, UK
2. Institute of Mental Health, Nottingham, UK
3. Department of Clinical Psychology and Neuropsychology, Nottingham University Hospitals NHS Trust, Nottingham, UK
4. Nottingham Clinical Trials Unit, University of Nottingham, Nottingham, UK
5. Division of Rehabilitation and Ageing, University of Nottingham, Nottingham, UK
6. School of Health Sciences, University of Nottingham, Nottingham, UK
7. Swansea Centre for Health Economics, Swansea University, Swansea, UK
8. Newby Psychological Services Ltd, Northwich, UK
9. Division of Health and Social Care, King’s College London, London, UK