1. University of Warwick; Warwick Medical School; Coventry UK CV4 7AL
2. University of Warwick; Warwick Orthopaedics, Warwick Medical School; Gibbet Hill Campus Coventry UK CV4 7AL
3. Brigham and Women's Hospital; Division of Trauma, Burns, and Surgical Critical Care; 75 Francis Street Boston USA MA 02115
4. University of Oxford, John Radcliffe Hospital; Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS); Kadoorie Centre Headley Way Oxford Oxfordshire UK OX3 9DU