1. Pediatric Hematology/Oncology, Hannover Medical School, Hannover, Germany
2. Pediatric Hematology/Oncology and Stem Cell Transplantation, Charité University Medicine Berlin, Berlin, Germany
3. Zentrum für Kinder- und Jugendmedizin, Klinikum der Johann-Wolfgang-Goethe-Universität, Klinik III, Frankfurt, Germany
4. Pediatric Hematology/Oncology, University of Muenster, Muenster, Germany
5. Pediatric hematology/Oncology, University Children’s Hospital Tuebingen, Tuebingen, Germany
6. Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
7. Institute of Cellular Therapeutics, Hannover Medical School, GMP-DU, IFB-Tx, Hannover, Germany
8. Paediatric Hematology and Oncology, Medical Center, University of Essen, Essen, Germany
9. Department of Pediatric Hematology Oncology, University of Düsseldorf Medical School, Düsseldorf, Germany
10. Pediatric Hematologie/Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
11. Childrens Hospitals, University of Würzburg, Germany
12. Univ.-Klinik für Kinder- und Jugendmedizin, Ulm, Germany
13. Pediatric Hematology and Oncology, University Freiburg, Freiburg, Germany
14. Hematology/Onkology, Hannover Medical School, Hannover, Germany