1. Department of Child Neurology, Amsterdam Leukodystrophy Center, Emma Children's Hospital, Amsterdam University Medical Centers, and Amsterdam Neuroscience, Cellular & Molecular Mechanisms Vrije Universiteit Amsterdam the Netherlands
2. Center for Translational Immunology University Medical Center Utrecht Utrecht the Netherlands
3. Nierkens and Lindemans Group Princess Máxima Center for Pediatric Oncology Utrecht the Netherlands
4. Department of Pathology, Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers VU University and Neuroscience Campus Amsterdam Amsterdam the Netherlands
5. Department of Radiology and Nuclear Medicine, Neuroscience Campus Amsterdam, Amsterdam University Medical Centers VU university Amsterdam the Netherlands
6. Stem Cell Transplantation and Cellular Therapies Program, Department of Pediatrics Memorial Sloan Kettering Cancer Center New York NY USA
7. Pediatric Blood and Bone Marrow Transplantation, Princess Máxima Center for Pediatric Oncology Utrecht the Netherlands
8. Institute of Biochemistry and Molecular Biology, Medical Faculty Rheinische Friedrich‐Wilhelm University Bonn Germany
9. Division of Neurology, Department of Pediatrics, Children's Hospital of Philadelphia University of Pennsylvania Philadelphia PA USA
10. Department of Integrative Neurophysiology VU University Amsterdam the Netherlands