1. University Medical Centre Utrecht Utrecht The Netherlands
2. Lausanne University Hospital, Lausanne, Switzerland, and University Hospital Basel Basel Switzerland
3. Academic Medical Centre Amsterdam Amsterdam The Netherlands
4. University Medical Centre Utrecht, Utrecht, The Netherlands, and Radboud University Medical Centre Nijmegen The Netherlands
5. KK Women’s and Children’s Hospital, Duke‐NUS Medical SchoolSingHealth Duke‐NUS Academic Medical Center Singapore
6. CHU de Strasbourg Strasbourg France
7. University Medical Centre Utrecht, Utrecht, The Netherlands, Sigmund Freud Private University, Vienna, Austria, and Hanusch Krankenhaus und Ludwig Boltzmann Institut für Osteologie Vienna Austria
8. Sophia Children’s HospitalErasmus University Medical Centre Rotterdam The Netherlands
9. Amalia Children’s HospitalRadboud University Medical Centre Nijmegen The Netherlands
10. Beatrix Children’s HospitalUniversity Medical Centre Groningen Groningen The Netherlands
11. Emma Children’s Hospital AMCUniversity of Amsterdam The Netherlands
12. Sophia Children’s Hospital, Erasmus University Medical Centre, Rotterdam, The Netherlands, and Leiden University Medical Centre Leiden The Netherlands
13. University College London, University College London Hospital, the NIHR Biomedical Research Centre at Great Ormond Street Hospital, and Great Ormond Street Hospital London UK
14. University College London London UK