1. Department of Medical Oncology and Pulmonology, University Hospital Tübingen , Otfried-Müller-Str 14, 72076 Tübingen , Germany
2. DFG Cluster of Excellence 2180 ‘Image-guided and Functionally Instructed Tumor Therapies’ (iFIT), University of Tübingen , Tübingen, Germany
3. Department of Radiation Oncology, University Hospital Würzburg , Josef-Schneider-Str. 2, 97080 Würzburg, Germany
4. Rudolf Virchow Center, Center for Integrative and Translational Bioimaging, University of Würzburg , Josef-Schneider-Str 2, 97080 Würzburg, Germany