1. Developmental Endocrinology Research Group (K.S.A., D.K., M.T.D.), Clinical and Molecular Genetics Unit, University College London Institute of Child Health, London WC1N 1EH, United Kingdom;
2. Institute of Diabetes and Endocrinology (C.T.C.), The Children's Hospital at Westmead, Westmead 2145, Australia;
3. Regional Cytogenetics Laboratory (R.P.), Great Ormond Street Hospital, London WC1N 3JH, United Kingdom;
4. Unidade de Endocrinologia do Desenvolvimento (I.J.P.A., M.E.M.), Universidade de Sao Paulo, 05598-000 São Paulo, Brazil;
5. Institute for Experimental Pediatric Endocrinology (D.S., A.G.), Charité Children's Hospital, 13353 Berlin, Germany