1. Department of Pediatrics (E.M.N.B., A.C.S.H.-K.), Erasmus MC-Sophia Children’s Hospital, 3015 GJ Rotterdam, The Netherlands
2. Department of Metabolic and Endocrine Diseases (J.v.D.), University Medical Center, Wilhelmina Children’s Hospital, 3508 AB Utrecht, The Netherlands
3. Division of Endocrinology, and Department of Epidemiology and Biostatistics (P.G.H.M.), Erasmus MC-Sophia Children’s Hospital, 3015 GJ Rotterdam, The Netherlands