1. University Hospitals of Leicester NHS Trust, Leicester, UK
2. Pulvertaft Hand Centre, Royal Derby Hospital, Derby, UK
3. York Trials Unit, Department of Health Sciences, University of York, York, UK
4. Oxford University Hospitals NHS Foundation Trust, Nuffield Orthopaedic Centre, Oxford, UK
5. Oxford Trauma and Emergency Care, NDORMS, University of Oxford, The Kadoorie Centre, John Radcliffe Hospital, Oxford, UK
6. Department of Orthopaedic Surgery, Bolton NHS Foundation Trust, Royal Bolton Hospital, Bolton, UK