1. Academic Endocrine Unit (P.J.N., J.J., G.V.W., P.T.C., B.S., M.R.B., R.V.T.), Nuffield Department of Clinical Medicine, University of Oxford, Oxford OX3 7LJ, United Kingdom
2. Department of Radiology (R.R.P., F.V.G.), The Churchill Hospital, Oxford OX3 7LJ, United Kingdom
3. Departments of Pathology (S.G.), Oxford Children’s Hospital, Oxford OX3 9DU, United Kingdom
4. Paediatric Surgery (P.R.V.J.), Oxford Children’s Hospital, Oxford OX3 9DU, United Kingdom
5. Paediatric Endocrinology and Diabetes (F.J.R.), Oxford Children’s Hospital, Oxford OX3 9DU, United Kingdom