1. Department of Sport and Exercise Medicine, Nuffield Orthopaedic Centre, Oxford University Hospitals NHS Trust, Oxford, UK
2. Emergency Department, John Radcliffe Hospital, Oxford University Hospitals NHS Trust, Oxford, UK
3. Department of Cardiology, John Radcliffe Hospital, Oxford University Hospitals NHS Trust, Oxford, UK
4. Institute of Sport, Exercise and Health, Division of Surgery and Interventional Sciences, University College London, London, UK