1. Department of Undergraduate Medical Education, Royal Free London NHS Foundation Trust, London, UK
2. Department of Surgery and Cancer, Imperial College London, UK
3. Department of Plastic Surgery, Salisbury Hospital, Salisbury, UK
4. Department of Medicine, Mount Auburn Hospital, Harvard Medical School, Cambridge, MA
5. Department of Surgery, University of Chicago Medicine, Chicago, IL
6. Department of Vascular Surgery, Imperial College Healthcare NHS Trust, London, UK