1. Department of Pediatric Oncology, Hematology, and Immunology University of Heidelberg Heidelberg Germany
2. Hopp Children's Cancer Center (KiTZ) Heidelberg Heidelberg Germany
3. Molecular Medicine Partnership Unit (MMPU) European Molecular Biology Laboratory (EMBL) Heidelberg Germany
4. German Consortium for Translational Cancer Research (DKTK) Heidelberg Germany
5. Genome Biology Unit European Molecular Biology Laboratory (EMBL) Heidelberg Germany
6. Genomics Core Facility European Molecular Biology Laboratory (EMBL) Heidelberg Germany
7. Division of Pediatric Oncology University Children's Hospital Zürich Switzerland
8. Flow Cytometry Core Facility European Molecular Biology Laboratory (EMBL) Heidelberg Germany
9. Department of Pediatric Hematology and Oncology Hannover Medical School Hannover Germany
10. Department of Pediatrics University Hospital Schleswig‐Holstein Kiel Germany
11. Clinic of Pediatric Hematology and Oncology University Medical Center Hamburg‐Eppendorf Hamburg Germany
12. Department of Pediatric Oncology/Hematology Charité Universitätsmedizin Berlin Berlin Germany
13. Department of Cardiac Surgery University of Heidelberg Heidelberg Germany
14. Department of Pediatric Cardiology and Congenital Heart Diseases University of Heidelberg Heidelberg Germany