1. Centre for Epidemiology Versus Arthritis, Division of Musculoskeletal and Dermatological Science, School of Biological Sciences, Faculty of Biological Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre , Manchester, UK
2. Division of Immunology and Rheumatology, Department of Medicine, Stanford University , Stanford, CA, USA
3. Centre for Rheumatic Diseases, King's College London , London, UK