1. Stem Cell Transplantation Program; Department I of Internal Medicine; Center for Integrated Oncology CIO KölnBonn; University Hospital of Cologne; Cologne Germany
2. Cologne Interventional Immunology; Department I of Internal Medicine; University Hospital of Cologne; Cologne Germany
3. Sidney Kimmel Comprehensive Cancer Center and Department of Oncology; Johns Hopkins University School of Medicine; Baltimore MD USA
4. Institute of Medical Statistics, Informatics and Epidemiology; University of Cologne; Cologne Germany
5. Medical Clinic III for Oncology, Haematology and Rheumatology; Center for Integrated Oncology CIO KölnBonn; University Hospital Bonn; Bonn Germany