1. Department of Human Genetics, McGill University, Montreal, Quebec, Canada
2. McGill University and Génome Québec Innovation Centre, Montreal, Quebec, Canada
3. Department of Pediatrics, McGill University, Montreal, Quebec, Canada
4. Institute of Neuropathology, University Hospital Münster, Münster, Germany
5. Pediatric Hematology and Oncology, University Hospital Heidelberg, Heidelberg, Germany
6. Division of Pediatric Neuro-Oncology, German Cancer Research Center DKFZ, Heidelberg, Germany
7. German Cancer Consortium (DKTK), Core Center Heidelberg, Heidelberg, Germany
8. Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
9. Current affiliation: Comprehensive Cancer Center and Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
10. Department of Pediatrics, Keck School of Medicine of USC, Los Angeles, California, USA
11. Department of Medical Genetics, Lady Davis Institute and Segal Cancer Centre, Jewish General Hospital, McGill University, Montreal, Quebec, Canada
12. Department of Medical Genetics, Research Institute, McGill University Health Centre, Montreal, Quebec, Canada