1. School of Health Professions, Faculty of Health and Human Sciences, Peninsula Allied Health Centre, University of Plymouth, Plymouth, UK
2. School of Psychology, Faculty of Health and Human Sciences, University of Plymouth, Plymouth, UK
3. School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, UK
4. Douglas Grant Rehabilitation Unit, Ayrshire Central Hospital, Irvine, UK
5. Peninsula Clinical Trials Unit at Plymouth University (PenCTU), Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
6. Medical Statistics Group, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
7. University of Exeter Medical School, Health Economics Group, University of Exeter, Exeter, UK
8. National Institute for Health Research (NIHR) Research Design Service (South West), Musgrove Park Hospital, Taunton, UK
9. National Institute for Health Research (NIHR) Research Design Service, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
10. Service user representative
11. School of Medicine, University of St Andrews, St Andrews, UK