1. Department of Pediatric Endocrinology; Emma Children's Hospital, Academic Medical Center, University of Amsterdam; Amsterdam the Netherlands
2. Department of Pediatric Endocrinology; Wilhelmina Children's Hospital, University Medical Center Utrecht; Utrecht the Netherlands
3. Department of Clinical Epidemiology; Biostatistics, and Bioinformatics, Academic Medical Center, University of Amsterdam; Amsterdam the Netherlands
4. Department of Medical Informatics; Academic Medical Center, University of Amsterdam; Amsterdam the Netherlands
5. Department of Medical Oncology; Academic Medical Centre, University of Amsterdam; Amsterdam the Netherlands
6. Department of Pediatric Oncology; Emma Children's Hospital, Academic Medical Center, University of Amsterdam; Amsterdam the Netherlands