1. GMMG‐Study Group, Department of Internal Medicine V Heidelberg University Hospital Heidelberg Germany
2. Working Group Exercise Oncology, Department of Medical Oncology, National Center for Tumor Diseases (NCT) Heidelberg University Heidelberg Germany
3. Department of Medical Oncology, National Center for Tumor Diseases (NCT) Heidelberg University Heidelberg Germany
4. Department of Internal Medicine V Heidelberg University Hospital Heidelberg Germany
5. Department of Internal Medicine V, Heidelberg Myeloma Center Heidelberg University Hospital Heidelberg Germany