1 Department of Radiation Oncology, Technische Universität Dresden, Germany; OncoRay-National Center for Radiation Research in Oncology, Technische Universität Dresden, Germany; Institute of Radiation Oncology, Helmholtz-Zentrum Dresden-Rossendorf, Germany; German Cancer Consortium (DKTK) Partner Site Dresden and German Cancer Research Center (DKFZ), Heidelberg, Germany.
2 Department of Experimental Clinical Oncology, Aarhus University Hospital, Denmark.