1. Paediatric Endocrinology (P.B.), Centre Hospitalier Régional Universitaire Bordeaux, Department of Paediatrics, F-33076 Bordeaux, France
2. Endocrinology (D.E.W.L., C.M.C.E., C.R.M., B.R.W., R.A.), Centre for Cardiovascular Science, University of Edinburgh, Edinburgh EH16 4TJ, United Kingdom