1. Rheumatology Department, Northumbria Healthcare NHS Foundation Trust, Northumbria, UK
2. Hull York Medical School, University of York, York, UK
3. Rheumatology, Wrightington Wigan and Leigh NHS Foundation Trust, Wigan, UK
4. Rheumatology, Wishaw General Hospital, Wishaw, UK
5. Rheumatology, Liverpool University Hospitals Foundation Trust, Liverpool, UK
6. Rheumatology, Mid Yorkshire NHS Trust, Yorkshire, UK
7. Department of Rheumatology, Leeds Institute of Rheumatic and Musculoskeletal Medicine, Leeds, UK