1. Department of Clinical Sciences and Community Health (F.M.E., E.P., P.B., P.B.-P., A.S., G.Ma.), Endocrinology and Diabetology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Ca' Granda Ospedale Maggiore Policlinico, University of Milan, 20122 Milan, Italy
2. Department of Public Health and Pediatrics (L.d.S.), University of Turin, Regina Margherita Children's Hospital, 10126 Turin, Italy
3. Department of Laboratory Medicine (B.P., G.Mi.), Cytogenetics and Molecular Biology Unit, Santa Maria degli Angeli Hospital, 33085 Pordenone, Italy