1. Department of Medicine, Royal Oldham Hospital, Northern Care Alliance NHS Foundation Trust , Manchester, UK
2. Manchester Centre for Clinical Neurosciences, Northern Care Alliance NHS Foundation Trust, Manchester Academic Health Science Centre , Salford, UK
3. Division of Musculoskeletal and Dermatological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester , Manchester, UK
4. Department of Rheumatology, Salford Royal Hospital, Northern Care Alliance NHS Foundation Trust, Manchester Academic Health Science Centre , Salford, UK