1. Department of Psychology; University of Southampton; Southampton UK
2. Oxford Pain Relief Unit; Churchill Hospital, Oxford University Hospitals NHS Trust; Oxford UK
3. Centre for Pain Research; University of Bath; Bath UK
4. University College London; London UK
5. Newcastle University; Newcastle upon Tyne UK
6. School of Pharmacy and Bioengineering; Keele University; Keele UK
7. Newton Ferrers, Plymouth UK
8. Bristol Medical School; University of Bristol; Bristol UK