1. Dutch Growth Foundation (M.A.J.d.R., A.C.S.H.-K.), 3001 KB Rotterdam, The Netherlands
2. Department of Epidemiology and Biostatistics (M.A.J.d.R., T.S.), Division of Endocrinology, Sophia Children’s Hospital, Erasmus Medical Center, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands
3. Department of Pediatrics (A.C.S.H.-K.), Division of Endocrinology, Sophia Children’s Hospital, Erasmus Medical Center, University Medical Center Rotterdam, 3000 CA Rotterdam, The Netherlands