1. Department of Internal Medicine 5, Hematology and Oncology, University of Erlangen-Nuremberg, Erlangen, Germany;
2. Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden;
3. Department of Translational Oncology, National Center for Tumor Diseases (NCT), German Cancer Research Center (DKFZ), Heidelberg, Germany; and
4. Department of Medicine V, University Hospital Heidelberg, Heidelberg, Germany