1. Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), Botnar Research Centre, University of Oxford, Oxford, UK
2. Oxford University Hospitals NHS Trust, Oxford, UK
3. Guy's and St Thomas' NHS Foundation Trust, London, UK
4. Queen Elizabeth Hospital Birmingham, Birmingham, UK
5. Trauma Unit, John Radcliffe Hospital, Oxford, UK