1. Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Nuffield Orthopaedics Centre, Headington, Oxford, UK
2. York and Scarborough Teaching Hospitals NHS Foundation Trust, York Hospital, Clifton, York, UK
3. Surrey and Sussex Healthcare NHS Trust, East Surrey Hospital, Redhill, UK
4. Bodleian Health Care Libraries, Education Centre, Horton Hospital, Banbury, UK
5. Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Headington, Oxford, UK