Norman L. Browse KT MD FRCS FRCP Professor of Surgery, Emeritus, University of London, UK Honorary Consulting Surgeon, St Thomas' Hospital, London, UK Past-President, Royal College of Surgeons of England, London, UK John Black MD FRCS Consultant Surgeon, Worcester Royal Hospital, UK President, Royal College of Surgeons of England, London, UK Kevin G. Burnand MS FRCS MBBS Professor of Vascular Surgery, Emeritus, and Former Chairman of the Academic Department of Surgery and Anaesthesia in the Cardiovascular Division of King's College at the St Thomas' Campus, London, UK Honorary Consultant Surgeon, Guy's and St Thomas' NHS Foundation Trust, London, UK Steven A. Corbett BSc PhD FRCS FRCS(Tr&Orth) Consultant Orthopaedic Surgeon, Guy's and St Thomas' Hospitals NHS Foundation Trust, London, UK William E. G. Thomas MS FRCS Consultant Surgeon, Sheffield Teaching Hospitals NHS Foundation Trust; Honorary Senior Lecturer in Surgery, University of Sheffield, UK Vice President and Member of Council, Royal College of Surgeons of England, London, UK