1. Section of Vascular Surgery, Department of Surgery and Cancer, Imperial College London, London, UK.
2. Kings College NHS Foundation Trust, London, UK.
3. Department of Plastic Surgery, Stoke Mandeville Hospital, Aylesbury, UK.
4. Department of Trauma, Orthopaedic and Hand Surgery, Wrightington, Wigan and Leigh NHS Foundation Trust, Wigan, UK.
5. Hand Management Unit, Chelsea and Westminster Hospital, London, UK.
6. Department of Surgery and Cancer, Imperial College London, London, UK.