1 Department of Pediatrics and Children's Cancer Research Center (CCRC), Technische Universität München, Koelner Platz 1, 80804, Munich, Germany. stefan.burdach@tum.de.
2 CCC München-Comprehensive Cancer Center and German Translational Cancer Research Consortium (DKTK), Partner Site Munich, Munich, Germany. stefan.burdach@tum.de.
3 Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, Eythstr. 24, 89075, Ulm, Germany.
4 Department of Pediatrics and Children's Cancer Research Center (CCRC), Technische Universität München, Koelner Platz 1, 80804, Munich, Germany.