1. Faculty of Medicine, Institute of Cell Biology (Cancer Research), University of Duisburg-Essen; Essen Germany
2. Institute of Human Genetics, Christian-Albrechts University Kiel & University Hospital Schleswig-Holstein, Campus Kiel; Kiel Germany
3. Department of Pathology; Hematopathology Section and Lymph Node Registry, University Hospital Schleswig-Holstein, Campus Kiel/Christian-Albrechts-University Kiel; Kiel Germany
4. Department of Immunology; Genetics and Pathology, Uppsala University Hospital; Uppsala Sweden
5. Senckenberg Institute of Pathology, University of Frankfurt, Medical School; Frankfurt Germany
6. Institute of Human Genetics, Polish Academy of Sciences; Poznan Poland
7. Department of Otolaryngology; Head and Neck Surgery; Poznan University of Medical Sciences; Poznan Poland