1. 1Medical Department II, Hematology and Oncology, Christian-Albrechts University of Kiel and University Hospital Schleswig-Holstein, Kiel, Germany
2. 2University Cancer Center Schleswig-Holstein, University Hospital Schleswig-Holstein, Kiel and Lübeck, Germany
3. 3Clinical Research Unit CATCH-ALL, Christian-Albrechts-University of Kiel, Kiel, Germany
4. 4Munich Leukemia Laboratory, Munich, Germany
5. 5Solana Research GmbH, Windeby, Germany
6. 6Central European Institute of Technology, Masaryk University, Brno, Czech Republic
7. 7Institute of Immunology, Christian-Albrechts University of Kiel and University Hospital Schleswig-Holstein, Kiel, Germany
8. 8Department of Evolutionary Theory, Max Planck Institute for Evolutionary Biology, Ploen, Germany
9. 9Department of Medicine II, Goethe University Hospital, Frankfurt, Germany