1. Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS); University of Oxford; Oxford UK
2. Oxford Trauma, Nuffield Department of Orthopaedic Rheumatology and Musculoskeletal Sciences; University of Oxford; Oxford UK
3. Oral and Maxillofacial Surgery; Oxford University Hospitals NHS Foundation Trust; Oxford UK
4. Department of Plastic Surgery; Stoke Mandeville Hospital, Buckinghamshire Healthcare NHS Trust; Aylesbury UK
5. Centre for Statistics in Medicine, NDORMS; University of Oxford; Oxford UK
6. Centre for Public Health; Queen's University Belfast; Belfast UK