1. University of Manchester Centre for Epidemiology Versus Arthritis, Division of Musculoskeletal and Dermatological Sciences, Faculty of Biology Medicine and Health, , Manchester, UK
2. University of Manchester Centre for Pharmacoepidemiology and Drug Safety, Division of Pharmacy and Optometry, School of Health Sciences, Manchester Academic Health Science Centre, , Manchester UK
3. University of Manchester NIHR Greater Manchester Patient Safety Translational Research Centre, Faculty of Biology, Medicine and Health, , Manchester, UK
4. Wrightington Hospital Department of Trauma and Orthopaedic Surgery, , Wigan, UK
5. Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre NIHR Manchester Biomedical Research Centre, , Manchester, UK