[1] University of Duisburg-Essen,Department of Radiotherapy, West German Cancer Center
[2] University of Duisburg-Essen,Institute of Pathology and Neuropathology, West German Cancer Center
[3] University of Duisburg-Essen,Department of Medical Oncology, West German Cancer Center
[4] University of Duisburg-Essen,Institute of Cell Biology (Cancer Research)
[5] University of Duisburg-Essen,Division of Interventional Pneumology, Ruhrlandklinik,West German Lung Center
[6] University of Duisburg-Essen,Division of Thoracic Surgery and Thoracic Endoscopy, Ruhrlandklinik, West German Lung Center
[7] University of Duisburg-Essen,Division of Thoracic Oncology, Ruhrlandklinik, West German Lung Center
[8] German Cancer Consortium (DKTK),undefined