1. Kadoorie Centre for Critical Care Research and Education, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, UK
2. Department of Burns and Plastic Surgery, Stoke Mandeville Hospital, Aylesbury, UK
3. Department of Cardiothoracic Surgery, Liverpool Heart and Chest Hospital, Liverpool, UK
4. Department of Plastic Surgery, Salisbury NHS Foundation Trust, Salisbury District Hospital, Odstock, Salisbury, UK
5. Leeds Institute for Medical Research, University of Leeds, Leeds, UK
6. Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, UK
7. Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry and Department of Plastic Surgery, Stoke Mandeville Hospital, Buckinghamshire Healthcare NHS Trust, Aylesbury, UK