1. Department of Pediatric Hematology/Oncology; University Children's Hospital, Eberhard Karls University; 72076; Tuebingen; Germany
2. Microarray Facility Tuebingen; Institute of Human Genetics, Eberhard Karls University; 72076; Tuebingen; Germany
3. Department of Pediatrics; University Medical Center Schleswig-Holstein; Campus Kiel, Schwanenweg 20; 24105; Kiel; Germany
4. Oncogenetic Laboratory; Department of Pediatric Hematology and Oncology; Justus Liebig University; 35392; Giessen; Germany
5. 3rd Department of Medicine-Hematology and Oncology; University Medical Center, Johannes Gutenberg-University; 55010; Mainz; Germany