1Academic Endocrine Unit, Nuffield Department of Clinical Medicine, Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), University of Oxford, OxfordOX3 7LJ, UK,
2Department of Chemistry, Centre for Biotechnology and Drug Design, Georgia State University, Atlanta,GA 30303, USA,
3Oxford Molecular Genetics Laboratory, Churchill Hospital, OxfordOX3 7LJ, UK,
4Sir William Dunn School of Pathology, University of Oxford, OX1 3RE, UK
5Clinic and Laboratory of Experimental Medicine and Endocrinology, Katholieke Universiteit Leuven, Leuven, Belgium,
6Department of Paediatric Endocrinology, Great Ormond Street Hospital, London WC1N 3JH, UK,
7Paediatric Endocrine Clinic, Chelsea and Westminster Hospital, LondonSW10 9NH, UK,
8Department of Paediatric Endocrinology and Diabetes, Bristol Royal Hospital for Children, BristolBS2 8BJ, UK,
9University of Dundee Medical School, Ninewells Hospital and Medical School, DundeeDD1 4HN, UK,
10Clinic for Children and Adolescent Medicine, University-Hospital-Eppendorf, Martinstrasse 52, 20246 Hamburg, Germany,
11Lilly Deutschland GmbH, 61352 Bad Homburg, Germany,
12Department of Clinical Chemistry, Royal Liverpool University Hospital, LiverpoolL7 8XP, UK,
13Department of Nephrology, Royal Children's Hospital, Flemington Road, Parkville 3052, Australia,
14Department of Paediatric Endocrinology, Royal Manchester Children's Hospital, ManchesterM13 9WL, UK,
15Department of Paediatrics, Monash Medical Centre, Monash University, Clayton3168, Australia,
16Department of Pediatrics, Division of Endocrinology, Cardinal Glennon Children's Medical Centre, Saint Louis University School of Medicine, St. Louis, MO 63104, USA and
17Division of Endocrinology, Diabetes and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, EBRC223A, 221 Longwood Avenue, Boston, MA 02115, USA