1. Department of Medicine V, University of Heidelberg, Heidelberg, Germany;
2. Department of Medicine III, University of Ulm, Ulm, Germany;
3. Department of Translational Oncology, National Center for Tumor Diseases and German Cancer Research Center, Heidelberg, Germany;
4. Department of Medicine II, University Hospital of Schleswig-Holstein, Kiel, Germany;
5. Division of Hematology, University of Pavia, Pavia, Italy;
6. Institute of Medical Statistics and Epidemiology, Technical University Munich, Munich, Germany;
7. Department of Hematology and Stem Cell Transplantation, Asklepios Klinik St. Georg, Hamburg, Germany;
8. Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hanover, Germany;
9. Department of Medicine for Hematology, Oncology and Tumor Immunology, Charite Campus Virchow-Klinikum, Universitätsmedizin Berlin, Berlin, Germany; and
10. Department of Medicine I, Center for Integrated Oncology Cologne Bonn, University of Cologne, Cologne, Germany