1. Department of Pediatrics (L.G., A.V., M.F.), University of Parma, 43100 Parma, Italy
2. Evgenidion Hospital (G.M.), Athens University, Medical School, Endocrine Unit, 11528 Athens, Greece
3. Department of Endocrinology and Metabolism (A.B., A.C.), University of Genova, 16132 Genova, Italy
4. Department of Obstetrics and Gynecology (B.F.), University of Parma, 43100 Parma, Italy
5. National Institute of Child Health and Human Development (G.P.C.), National Institutes of Health, Bethesda, Maryland 20892
6. Department of Pediatrics (S.B.), University of Modena, 41100 Modena, Italy