1 Department of Hematology, Oncology and Stem Cell Transplantation, Medical Center, University of Freiburg, Freiburg, Germany.
2 Faculty of Medicine, University of Freiburg, Freiburg, Germany.
3 Clinical Trials Unit, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
4 Department of Hematology, Oncology and Stem Cell Transplantation, Medical Center, University of Freiburg, Freiburg, Germany. ralph.waesch@uniklinik-freiburg.de.
5 Faculty of Medicine, University of Freiburg, Freiburg, Germany. ralph.waesch@uniklinik-freiburg.de.