1. Institute of Cell Biology (Cancer Research), Medical School, University of Duisburg-Essen, 45122 Essen, Germany
2. Senkenberg Institute of Pathology, University of Frankfurt/Main, 60590 Frankfurt, Germany
3. Institute of Human Genetics and Department of Pathology, Hematopathology Section and Lymph Node Registry, Christian-Albrechts University Kiel, University Hospital Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany
4. Institute of Pathology, University of Heidelberg, 69120 Heidelberg, Germany
5. Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznan, Poland