1. Dutch Growth Research Foundation (R.F.A.d.L.v.W., D.A.M.F., A.C.S.H.-K.), 3016 AH Rotterdam, The Netherlands
2. Department of Pediatrics (R.F.A.d.L.v.W., D.A.M.F., A.C.S.H.-K.), Subdivision of Endocrinology, Erasmus University Medical Center Rotterdam, Sophia Children’s Hospital, 3015 GJ Rotterdam, The Netherlands
3. Department of Pediatrics (B.J.O.), Subdivision of Endocrinology, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands
4. Department of Pediatrics (E.G.A.H.v.M.), Hieronymus Bosch Medical Center, 5211 NL ‘s-Hertogenbosch, The Netherlands
5. Department of Pediatrics (J.R.), Subdivision of Endocrinology, VU University Medical Center, 1081 HV Amsterdam, The Netherlands
6. Department of Pediatrics (R.J.O.), Catharina Hospital, 5623 EJ Eindhoven, The Netherlands
7. Department of Pediatrics (M.v.L.), St. Jansdal Hospital, 3844 DG Harderwijk, The Netherlands
8. Department of Pediatrics (D.A.J.P.H.), Diaconessenhuis, 2334 CK Leiden, The Netherlands
9. Department of Pediatrics (G.B.), Subdivision of Endocrinology, University Medical Center Groningen/Beatrix Children’s Hospital, 9713 GZ Groningen, The Netherlands
10. Department of Pediatrics (E.C.A.M.H.), Subdivision of Endocrinology, Haga Hospitals/Juliana Children’s Hospital, 2566 MJ The Hague, The Netherlands