C A Stratakis1, J Bertherat2. 1. Section on Endocrinology & Genetics, Program on Developmental Endocrinology & Genetics, Eunice Kennedy Shriver National Institute of Child Health & Human Development, National Institutes of Health, Bethesda, USA. 2. Endocrinology Department, Hôpital Cochin, AP-HP & Institut Cochin, INSERM U1016, CNRS 8104, Université Paris Descartes, Paris, France.