Elliott, Prof. Martin John, (born 8 March 1951), Professor of Cardiothoracic Surgery, University College London, since 2004; Consultant Paediatric Cardiothoracic Surgeon, Great Ormond Street Hospital for Children, since 1985 (Medical Director, 2010–15); Clinical Ambassador, Great Ormond Street Children’s Charity, since 2015; Chief Medical Officer, Allocate Software Ltd, since 2016