1. Department of Internal Medicine III, and
2. Interdisciplinary Center for Clinical Research, Genomics Core Facility, University of Ulm, Ulm, Germany;
3. University Medical Center, Johannes Gutenberg University, Mainz, Germany;
4. Department of Hematology/Oncology, Eberhard Karls University, Tübingen, Germany; and
5. Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, and
6. Institute of Cell and Molecular Pathology, Hannover Medical School, Hannover, Germany