1. Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford , Oxford, UK
2. Department of Rheumatology, Royal Lancaster Infirmary , Lancaster, UK
3. University Department of Rheumatology, Royal Berkshire NHS Foundation Trust , Reading, UK
4. Cardiff Regional Experimental Arthritis Treatment and Evaluation (CREATE) Centre, Cardiff University , Cardiff, UK
5. Centre for Rheumatic Diseases, King’s College London , London, UK
6. Rheumatology Department, University Hospitals of Coventry & Warwickshire , Coventry, UK
7. Department of Rheumatology, Salisbury NHS Foundation Trust , Salisbury, UK
8. Department of Dermatology, Faculty of Medicine and Health, University of Leeds , Leeds, UK
9. School of Infection and Immunity, University of Glasgow , Glasgow, UK
10. Rheumatology Department, Royal National Hospital for Rheumatic Disease , Bath, UK
11. The Wooda Surgery , Bideford, UK
12. Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds and NIHR Leeds Biomedical Research Centre , Leeds, UK