1. Institute of Radiooncology - OncoRay; Helmholtz-Zentrum Dresden-Rossendorf; Dresden Germany
2. OncoRay - National Center for Radiation Research in Oncology; Faculty of Medicine; University Hospital Carl Gustav Carus; Technische Universität Dresden; Helmholtz-Zentrum Dresden-Rossendorf; Dresden Germany
3. German Cancer Research Center (DKFZ); Medical Physics in Radiotherapy; Heidelberg Germany
4. National Center for Radiation Research in Oncology; Heidelberg Institute for Radiooncology; Heidelberg Germany
5. Department of Physics and Astronomy; University of Heidelberg; Heidelberg Germany
6. Department of Radiotherapy and Radiation Oncology; Faculty of Medicine; University Hospital Carl Gustav Carus; Technische Universität Dresden; Dresden Germany