1. Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
2. Musculoskeletal Research Unit, Translational Health Sciences, University of Bristol, Bristol, UK
3. The Royal Free Hospital NHS Foundation Trust, London, UK
4. University of Oxford Nuffield Department of Population Health, Oxford, UK
5. Barts Health NHS Trust, London, UK
6. Bone and Joint Health, Blizard Institute, Queen Mary University of London, London, UK