1. Rheumatology Department, Hospital Universitario Ramón y Cajal, Madrid, Spain
2. Centre for Musculoskeletal Research, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
3. Manchester Centre for Clinical Neuroscience, Salford Royal NHS Foundation Trust, Salford, UK
4. Department of Rheumatology, RPA Institute of Rheumatology and Orthopaedics, Royal Prince Alfred Hospital, Sydney, NSW, Australia
5. Department of Pharmacy and Pharmacology, University of Bath, Bath, UK
6. Royal National Hospital for Rheumatic Disease, Bath, UK
7. National Institute for Health Research Manchester Musculoskeletal Biomedical Research Centre, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
8. Department of Rheumatology, Salford Royal NHS Foundation Trust, Salford, UK