1. Department of Pediatric Hematology and Oncology Charité ‐ Universitätsmedizin Berlin Berlin Germany
2. Department of Pediatric Hematology and Oncology University Hospital Tübingen Germany
3. Department of Pediatric Oncology, Hematology, and Hemostaseology University Hospital Leipzig Leipzig Germany
4. Department of Pediatric Oncology and Hematology Charité‐Universitätsmedizin Berlin Berlin Germany
5. Berlin Institute of Health Berlin Germany
6. Department of Pediatrics Helios‐Klinikum Berlin‐Buch Berlin Germany
7. Berliner Institut für Gesundheitsforschung (BIH) Berlin Germany
8. German Cancer Consortium (DKTK) Berlin Germany
9. German Cancer Research Center (DKFZ) Heidelberg Germany