1. Department of Tumor BiologyCCRI, Children's Cancer Research InstituteSt. Anna KinderkrebsforschungVienna Austria
2. S2IRP, CCRI, Children's Cancer Research InstituteSt. Anna KinderkrebsforschungVienna Austria
3. Department of PediatricsMedical University of ViennaVienna Austria
4. Pathology DepartmentMedical School, University of Valencia, INCLIVAValencia Spain
5. Department of Clinical GeneticsInstitute of Biomedicine, Sahlgrenska Academy, University of GothenburgGothenburg Sweden
6. Department of Clinical PathologyMedical University of ViennaVienna Austria
7. Pediatric OncologyOlgahospital, Klinikum StuttgartStuttgart Germany
8. Department of Pediatric Oncology, Hematology and BMTWroclaw Medical UniversityWroclaw Poland
9. Division of Pediatric Hematology/OncologyDepartment of Pediatrics and Adolescent MedicineMedical University of GrazGraz Austria