1. Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds , Leeds, UK
2. NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust , Leeds, UK
3. Department of Rheumatology, Leeds Teaching Hospitals NHS Trust , Leeds, UK
4. East Elmbridge Primary Care Network, Kingston Hospital NHS Foundation Trust , Kingston upon Thames, UK
5. Norwich Practices Health Centre , Norwich, UK
6. Department of Rheumatology, Stockport NHS Foundation Trust , Stockport, UK
7. Powys Teaching Health Board, Bronllys Hospital , Brecon, UK
8. Norwich Medical School, University of East Anglia , Norwich, UK
9. Patient Expert, PMRGCAuk , UK
10. Centre for Immunology and Inflammatory Diseases, Massachusetts General Hospital , Boston, USA
11. Department of Rheumatology, Northumbria Healthcare NHS Foundation Trust , Newcastle upon Tyne, UK
12. King’s College London and Guy’s and St Thomas’ PET Centre , London, UK
13. Department of Cancer Imaging, School of Biomedical Engineering and Imaging Sciences, King’s College London , London, UK
14. Department of Rheumatology, Guy’s and St Thomas’ NHS Foundation Trust , London, UK
15. School of Medicine, Keele University , Keele, UK
16. Rheumatology Department, Norfolk and Norwich University Hospitals NHS Foundation Trust , Norwich, UK