1 Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden; National Center for Tumor Diseases, Partner Site Dresden, Dresden and German Cancer Research Center Heidelberg, Heidelberg, Germany.
2 Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden. triantafyllos.chavakis@uniklinikum-dresden.de.