1. Pediatric Hematology and Oncology, Martin-Luther-University Halle-Wittenberg, Halle, Germany;
2. Pediatric Hematology and Oncology, Department of Pediatrics, Goethe University Frankfurt, Frankfurt (Main), Germany;
3. Department of Biology, University of Rochester, Rochester NY;
4. Department of Pharmaceutical Chemistry and Bioanalytics, Institute of Pharmacy, Martin-Luther-University Halle-Wittenberg, Halle, Germany;
5. Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany;
6. Institute of Pathology, University Hospital Halle, Halle, Germany;
7. Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, Hospital Tauberbischofsheim, Tauberbischofsheim, Germany;
8. Max Planck Institute for Molecular Genetics, Berlin, Germany;
9. Institute for Experimental Virology, Twincore, Center for Experimental and Clinical Infection Research, Hannover, Germany; and
10. Pediatric Hematology and Oncology, Pediatrics III, University Hospital Essen, Essen, Germany