1. Department of Haematology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
2. Institute of Cell Biology (Cancer Research), Medical Faculty, University of Duisburg-Essen, Essen, Germany
3. Institute of Pathology and Neuropathology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen, Essen, Germany
4. German Cancer Consortium (DKTK), Essen, Germany
5. Center for Pathology Essen-Mitte, Essen, Germany
6. Department of Pathology, Haematopathology Section and Lymph Node Registry, University Hospital Schleswig-Holstein, Campus Kiel/Christian-Albrecht University, Kiel, Germany
7. Department of Oral and Cranio-Maxillofacial Surgery, Kliniken Essen-Mitte, Evang. Huyssens-Stiftung/Knappschaft GmbH, University Hospital of Essen, Essen, Germany
8. Department of Ophthalmology, Molecular Ophthalmology Group, University of Duisburg-Essen, Essen, Germany