1. University of Heidelberg, Heidelberg, Germany
2. National Center for Tumor Diseases and German Cancer Research Center, Heidelberg, Germany
3. Institute of Pathology, University of Heidelberg; and Clinical Cooperation Unit Neuropathology, German Cancer Research Center, Heidelberg, Germany
4. Institute of Neuropathology, University of Giessen, Giessen, Germany
5. Institute of Pathology, University of Heidelberg, Heidelberg, Germany
6. Institute for Hematopathology Hamburg, Hamburg, Germany
7. Klinikum am Plattenwald, Bad Friedrichshall, Germany
8. University of Heidelberg; National Center for Tumor Diseases and German Cancer Research Center, Heidelberg, Germany