1. Clinical Cooperation Unit Molecular Hematology/OncologyGerman Cancer Research Center (DKFZ) Heidelberg Germany
2. Department of Internal Medicine VUniversity of Heidelberg Heidelberg Germany
3. Institute of Human Genetics, University Heidelberg Heidelberg Germany
4. Division of Pediatric Hematology & Oncology, Department of Pediatrics, InselspitalUniversity Hospital, University of Bern Bern Switzerland
5. Division of Biostatistics, German Cancer Research Center (DKFZ) Heidelberg Germany
6. Division of Experimental Neurosurgery, Department of NeurosurgeryUniversity of Heidelberg Heidelberg Germany