1. Department of Internal Medicine II University Hospital Würzburg Würzburg Germany
2. Department of Hematology, and Medical Oncology University Medical Center of the Johannes Gutenberg University Mainz Mainz Germany
3. Department of Hematology and Oncology Otto‐von‐Guericke University Magdeburg, Medical Faculty Magdeburg Germany
4. Department of Oncology, Hematology, Hemostaseology, and Stem Cell Transplantation University Hospital RWTH Aachen Aachen Germany
5. Center for Integrated Oncology (CIO) Aachen, Bonn, Cologne, Düsseldorf (ABCD) Germany
6. Hamm Hospital Nahetal Bad Kreuznach Germany
7. Department of Internal Medicine I University Hospital of Cologne Cologne Germany
8. Department of Hematology, and Oncology Red Cross Hospital Munich Munich Germany
9. Clinic of Hematology, Oncology, Pneumology, and Nephrology Carl‐Thiem‐Hospital Cottbus Cottbus Germany