1. Department of PediatricsUniversity of LübeckPediatric Hematology and Oncology Lübeck Germany
2. St. Anna Children's Hospital, Medical University of ViennaPediatric Hematology and Oncology Vienna Austria
3. Department of Pediatrics, Pediatric Hematology and OncologyChristian Albrechts University Kiel Kiel Germany
4. Department of Pediatric Hematology and OncologyUniversity Children's Hospital Tübingen Tübingen Germany
5. Department of PediatricsUniversity Hospital Aachen Aachen Germany
6. Department of Pediatric Hematology and OncologyHannover Medical School Hannover Germany
7. Department of Pediatrics IIIUniversity Hospital Essen Essen Germany
8. Department of Pediatric Hematology and OncologyUniversity Hospital Charité Berlin Berlin Germany
9. Johann Wolfgang von Goethe UniversityPediatric Hematology and Oncology, Children's Hospital III Frankfurt Germany
10. Department of Pediatric Hematology and OncologyUniversity Children's Hospital Münster, Infectious Disease Research Program Münster Germany