1. Pain Management Centre, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
2. Department of Psychology, Middlesex University, London, UK
3. Psychological Medicine Unit, St Mark’s Hospital, London North West University Healthcare NHS Trust, Harrow, UK
4. Health Psychology Section, Psychology Department, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, UK
5. Department of Psychology, Uppsala University, Uppsala, Sweden