1 Division of Hematology and Oncology, Department of Medicine I, Technische Universität Dresden, 01309 Dresden, Germany; National Center for Tumor Diseases, Dresden, Germany.
2 Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Technische Universität Dresden, 01309 Dresden, Germany; German Cancer Consortium (DKTK), partner site Dresden, Germany. Electronic address: tilman.rachner@uniklinikum-dresden.de.