1. Department of Radiology, ELK Berlin Chest Hospital, Berlin, Germany
2. Institute for Clinical Radiology, University Hospital Münster, Germany
3. Dept. of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Germany
4. Dept. of Diagnostic and Interventional Radiology, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
5. Dept. of Pneumology and Critical Care Medicine, University Hospital Heidelberg, Germany
6. Dept. of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
7. Thoracic Oncology Department, Asklepios-Lung-Clinic Munich-Gauting, Munich, Germany
8. Dept. of Pneumology, University Hospital Regensburg, Germany