1. 1Section EndocrinologyDepartment of Medicine, Pituitary Centre Rotterdam, Erasmus University Medical Centre, Rotterdam, the Netherlands
2. 2Department of Paediatric Oncology/HaematologyErasmus MC – Sophia Children’s Hospital, Rotterdam, the Netherlands
3. 3Princess Maxima Centre for Paediatric OncologyUtrecht, the Netherlands
4. 4Department of Paediatric Neurology
5. 5Department of Paediatric NeurosurgeryErasmus MC – Sophia Children’s Hospital, Rotterdam, the Netherlands
6. 6Department of Neurosurgery
7. 7Department of Radiation OncologyPituitary Centre Rotterdam, Erasmus University Medical Centre, Rotterdam, the Netherlands