Affiliation: | 1.Department of Radiation Oncology, University Hospital Cologne, Joseph-Stelzmann-Str. 9, 50924, Köln, Germany ;2.Department of Radiotherapy and Radiation Oncology, Philips-University Marburg, Marburg, Germany ;3.Department of Radiotherapy and Radiation Oncology, University Hospital RWTH Aachen, Aachen, Germany ;4.Department of Stereotaxy and Functional Neurosurgery, University Hospital Cologne, Köln, Germany ;5.Radioonkologie und Strahlentherapie, Strahlenzentrum Hamburg, Hamburg, Germany ;6.Department of Radiation Oncology, University Hospital Freiburg, Freiburg, Germany ;7.Department of Radiation Oncology, University of Würzburg, Würzburg, Germany ;8.Department of Radiation Oncology, University Hospital Zurich, Zürich, Switzerland ;9.Klinik für Strahlentherapie und Radio-Onkologie, Helios-Klinikum Wuppertal, Wuppertal, Germany ; |