1. School of Dentistry; Manchester Biomedical Research Centre; University of Manchester; UK
2. Aberdeen Pain Research Collaboration (Epidemiology Group); Institute of Applied Health Sciences; University of Aberdeen, School of Medicine and Dentistry; Foresterhill UK
3. Centre for Statistics in Medicine; University of Oxford; UK
4. Academic Unit of Palliative Care; Leeds Institute of Health Sciences; University of Leeds; UK
5. School of Translational Medicine; University of Manchester; UK
6. Human Pain Research Group; Salford Royal NHS Foundation Trust; UK
7. Centre for Endocrinology and Diabetes; Institute of Human Development; University of Manchester, and Manchester Academic Health Sciences Centre; UK
8. Arthritis Research UK Primary Care Centre; Primary Care Sciences; Keele University; UK