1. The National Institute for Health Research Applied Research Collaboration West (NIHR ARC West) at University Hospitals Bristol and Weston NHS Foundation Trust, Whitefriars, Lewins Mead, Bristol, UK
2. Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
3. Pain Management Service, Southmead Hospital, North Bristol NHS Trust, Bristol, UK
4. Doctorate in Clinical Psychology, Clinical and Applied Psychology Unit, University of Sheffield, Cathedral Court, Sheffield, UK
5. Doctorate in Clinical Psychology, School of Psychology, Cardiff University, Cardiff, UK