1. Emma Children's HospitalAmsterdam UMCVrije Universiteit AmsterdamDepartment of Medical Psychology Amsterdam The Netherlands
2. Emma Children's HospitalAmsterdam UMCVrije Universiteit AmsterdamPediatric OncologyCancer Center Amsterdam Amsterdam The Netherlands
3. Faculty of HealthUniversity of Applied Science Amsterdam the Netherlands
4. Princess Máxima Center for Pediatric Oncology Utrecht the Netherlands
5. Child Development and Exercise CenterWilhelmina's Children's HospitalUMC Utrecht the Netherlands
6. Department of Pediatric Oncology/HematologyWilhelmina Children's HospitalUMC Utrecht the Netherlands
7. Emma Children's HospitalAmsterdam UMCAcademic Medical CenterDepartment of Pediatric Oncology Amsterdam The Netherlands
8. Department of Pediatric Oncology/HematologyErasmus MC‐Sophia Children's Hospital Rotterdam the Netherlands