1 Barts and the London School of Anaesthesia, London E1 1BB, UK; St. Andrews Centre for Plastic Surgery and Burns, Broomfield Hospital, Chelmsford CM1 7ET, UK. Electronic address: [email protected].
2 St. Andrews Centre for Plastic Surgery and Burns, Broomfield Hospital, Chelmsford CM1 7ET, UK; Great Ormond Street Hospital, Great Ormond Street, London WC2A 3JH, UK.