1. Lancaster Patient Safety Research Unit, Royal Lancaster Infirmary, Lancaster, UK
2. Bone and Joint Health, Blizard Institute, Queen Mary University of London, London, UK
3. Department of Health and Care, University of Central Lancashire, Preston, UK
4. Patient and public involvement representative, Sussex, UK
5. Centre for Sport and Exercise Health, Sheffield Hallam University, Sheffield, UK
6. Lancaster Medical School, Lancaster University, Lancaster, UK
7. Department of Anaesthesia, Royal Lancaster Infirmary, Lancaster, UK