1. ; Metabolic Unit; Great Ormond Street Hospital for Children NHS Trust; Great Ormond Street London WC1N 3JH UK
2. ; Department of Chemical Pathology; Great Ormond Street Hospital for Children NHS Trust; Great Ormond Street London WC1N 3JH UK
3. ; Department of Radiology; Great Ormond Street Hospital for Children NHS Trust; Great Ormond Street London WC1N 3JH UK
4. ; Department of Psychological Medicine; Great Ormond Street Hospital for Children NHS Trust; Great Ormond Street London WC1N 3JH UK