1. Centre for Paediatrics and Adolescent Medicine, Pediatric Hematology
and Oncology, Hospital of the Goethe University Frankfurt, Frankfurt am Main,
Germany
2. Pediatric Hematology and Oncology, University Hospital Giessen,
Giessen, Germany
3. Pediatric Hematology and Oncology, Ulm University Hospital, Ulm,
Germany
4. Pediatric Hematology and Oncology, Saarland University Hospital,
Homburg/Saar, Germany
5. Pediatric Hematology and Oncology, Hannover Medical School Centre for
Paediatrics and Adolescent Medicine, Hannover, Germany
6. Centre for Paediatrics and Adolescent Medicine, Pediatric Hematology
and Oncology, Hospital Dortmund, Dortmund, Germany
7. Bone marrow transplantation and Pediatric Hematology and Oncology,
University Hospital Münster, Munster, Germany