1. Division of Pediatric Hematology and Oncology, Hospital for Children
and Adolescents, Johann Wolfgang Goethe-University, Frankfurt,
Germany
2. Pediatric Hematology and Oncology, Children’s Hospital Medical
Center, University Hospital of Saarland, Homburg, Germany
3. Department of Pediatric Oncology, Medical Faculty, Hematology and
Clinical Immunology, Centre for Child and Adolescent Health, University of
Duesseldorf, Germany
4. Department of Pediatrics, Inselspital, Bern University Hospital, Bern,
Switzerland
5. Department of Pediatrics and Adolescent Medicine, St. Anna
Children’s Hospital, Medical University of Vienna, Pediatric Hematology
and Oncology, Vienna, Austria
6. Division of Infectious Diseases and Hospital Epidemiology, University
Children’s Hospital, Zürich, Switzerland
7. Siegburg
8. Hospital for Children and Adolescents, Medical University of Graz,
Graz, Auistria
9. Department of Paediatrics, Pediatric Hematology and Oncology, Christian
Albrechts University Kiel, Kiel, Germany
10. Department of Paediatric Haematology and Oncology, University Hospital
Essen, Essen, Germany
11. Infectious Disease Research Program, Center for Bone Marrow
Transplantation, Department of Pediatric Hematology/Oncology, University
Children’s Hospital, Muenster, Muenster, Germany