1. 1Division for Stem Cell Transplantation, Immunology and Intensive Care, Department for Children and Adolescents, University Hospital, Goethe University, Frankfurt, Germany
2. 2Pediatric Hematology and Oncology, Muenster University Children's Hospital, Muenster, Germany
3. 3Department of Stem Cell Transplantation, Hamburg-Eppendorf University Medical Center, Hamburg, Germany
4. 4Department of Internal Medicine II, Schleswig-Holstein University Hospital, Kiel, Germany
5. 5Department of Medicine III, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
6. 6Goethe University Institute for Transfusion Medicine and lmmunohematology, Translational Development of Cellular Therapies, and German Red Cross Blood Service Baden-Württemberg–Hesse, Frankfurt, Germany
7. 7Department of Pediatrics, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
8. 8Department of Medicine II, University Hospital of Wuerzburg, Wuerzburg, Germany
9. 9Department I of Internal Medicine, Medical Faculty and University Hospital Cologne, University of Cologne, Cologne, Germany
10. 10Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
11. 11Department of Pediatric Oncology and Hematology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
12. 12Division of Pediatric Stem Cell Therapy, Department of Pediatric Oncology, Hematology and Clinical lmmunology, Medical Faculty, Heinrich-Heine University, Duesseldorf, Germany
13. 13Department of Internal Medicine 5, Haematology and Oncology, University Hospital of Erlangen, Friedrich Alexander University of Erlangen-Nürnberg (FAU), Erlangen, Germany
14. 14Division of Pediatric, Stem Cell Transplantation and Immunology, Hamburg-Eppendorf University Medical Center, Hamburg, Germany
15. 15Department of Hematology, Oncology and Tumorimmunology, Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
16. 16Pediatric Hematology and Oncology, Medizinische Hochschule Hannover, Hannover, Germany
17. 17Department of Pediatric Hematology, Oncology, Stem Cell Transplantation, Wuerzburg University Children’s Hospital, Wuerzburg, Germany
18. 18Faculty of Medicine, Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Medical Center, University of Freiburg, Freiburg, Germany
19. 19Department of Pediatrics, Pediatric Hematology and Oncology, University Hospital Carl Gustav Carus, TU Dresden, Dresden, Germany
20. 20Department of Pediatrics, Children's Cancer Research Center, Kinderklinik München Schwabing, School of Medicine, Technical University of Munich, Munich, Germany
21. 21Department Pediatric Hematology, Oncology and Stem Cell Transplantation, Dr. von Hauner Children’s Hospital, Ludwig Maximilian University Munich, Munich, Germany