1. Department of Neuro‐OncologyErasmus MC Cancer Institute, Brain Tumor Center, University Medical CenterRotterdam the Netherlands
2. Department of PathologyErasmus MC Cancer Institute, University Medical CenterRotterdam the Netherlands
3. Department of NeurosurgeryErasmus MC Cancer Institute, Brain Tumor Center, University Medical CenterRotterdam the Netherlands
4. Department of Immunology, Laboratory Medical ImmunologyErasmus MC, University Medical CenterRotterdam the Netherlands
5. Department of HematologyErasmus MC Cancer Institute, University Medical CenterRotterdam the Netherlands
6. Department of PathologyErasmus MC Cancer Institute, Brain Tumor Center, University Medical CenterRotterdam the Netherlands