1. Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry, United Kingdom
2. Toronto Rehabilitation Institute, University Health Network, Toronto, Ontario, Canada
3. Department of Medicine, University of Toronto, Toronto, Ontario, Canada
4. Institute for Work & Health, Toronto, Ontario, Canada
5. Department of Pain Medicine, James Cook University Hospital, Middlesbrough, United Kingdom
6. now with Boston Scientific, Hemel Hempstead, United Kingdom
7. Wolfson Institute of Population Health, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
8. School of Psychology, Deakin University, Geelong, Victoria, Australia
9. Department of Anaesthesia and Pain Medicine, University Hospital Coventry and Warwickshire NHS Trust, Coventry, United Kingdom
10. Division of Health Sciences, Warwick Medical School, University of Warwick, Coventry, United Kingdom
11. Department of Health Sciences, University of York, York, United Kingdom
12. Danish Centre for Healthcare Improvements, Aalborg University, Aalborg, Denmark
13. Centre for Health Economics, University of York, York, United Kingdom
14. now with Statistics and Decision Sciences, Janssen Pharmaceuticals Research & Development, High Wycombe, United Kingdom
15. now with IQVIA, Reading, Berkshire, United Kingdom
16. Centre for Rheumatology Research, University College London, London, United Kingdom
17. Department of Psychology, University of Warwick, Coventry, United Kingdom
18. University/User Teaching and Research Action Partnership, University of Warwick, Coventry, United Kingdom
19. Service User and Carer Engagement, Coventry University, Coventry, United Kingdom
20. Hôpital de Morges, Morges, Switzerland
21. University Hospitals Coventry and Warwickshire NHS Trust, Coventry, United Kingdom