1. Division of Musculoskeletal and Dermatological Sciences, University of Manchester, Manchester, UK
2. Dermatology Research Centre, University of Manchester, Manchester, UK
3. Centre for Health Economics, University of Manchester, Manchester, UK
4. Centre for Pharmacoepidemiology and Drug Safety, University of Manchester, Manchester, UK
5. Primary Care and Health Sciences, Keele University, Keele, UK
6. Bridgewater Community Healthcare NHS Foundation Trust, Wigan, UK
7. School of Nursing, Midwifery and Social Work, University of Manchester, Manchester, UK
8. Centre for Epidemiology Versus Arthritis, Centre for Musculoskeletal Research, University of Manchester, Manchester, UK
9. Psoriasis Association, Northampton, UK
10. Manchester Diabetes Centre, Manchester University NHS Foundation Trust, Manchester, UK
11. Salford Royal NHS Foundation Trust, Salford, UK