1. Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester , Manchester , UK
2. The Dermatology Centre, Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Manchester Academic Health Science Centre , Manchester , UK
3. National Institute for Health and Care Excellence , Manchester , UK
4. School of Public Health and Preventive Medicine, Monash University , Melbourne, Victoria , Australia
5. Rheumatology Unit, Queen Elizabeth Hospital , Adelaide, South Australia , Australia