M Geissler1, A Tannapfel2, A Reinacher-Schick3, U Martens4, J Ricke5, J Riera-Knorrenschield6, S Kanzler7, S Held8, V Heinemann9, T Seufferlein10, D Modest11. 1. Klinikum Esslingen, Cancer Center Esslingen, Esslingen, Germany. 2. Department of Pathology, Ruhr-University Bochum, Bochum, Germany. 3. St Josef-Hospital, Ruhr University Bochum, Bochum, Germany. 4. Dept. of Hematology/Oncology, Cancer Center Heilbronn-Franken, Heilbronn, Germany. 5. University Clinic Magdeburg, Magdeburg, Germany. 6. Philips-Universität Marburg, Onkologie, Marburg, Germany. 7. Leopoldina-Krankenhaus Schweinfurt, Med. Klinik II, Schweinfurt, Germany. 8. Clinassess, Leverkusen, Germany. 9. Comprehensive Cancer Center, Krebszentrum München, Munich, Germany. 10. Department of Internal Medicine I, University of Ulm, Ulm, Germany. 11. Department of Medical Oncology & Comprehensive Cancer Center, University Hospital Grosshadern, Munich, Germany, Munich, Germany.