1. Pius Hospital Oldenburg, University of Oldenburg, Oldenburg, Germany;
2. University Hospital - University Duisburg-Essen, Essen, Germany;
3. Outpatient Center for Hematology and Medical Oncology, Ratingen, Germany;
4. PIOH - Praxis Internistische Onkologie und Haematologie, Cologne, Germany;
5. MVZ Onkologische Kooperation, Goslar, Germany;
6. Medical Practice for Oncology and Hematology, Freiburg, Germany;
7. iOMEDICO, Freiburg, Germany;
8. AIO-Studien-gGmbH, Berlin, Germany;
9. AIO Studien gGmbH, Berlin, Germany;
10. Institut für Pathologie, Technische Universität München, München, Germany;
11. Lungenfachklinik Immenhausen, Immenhausen, Germany;
12. Universitätsklinikum Essen, Essen, Germany;
13. Klinik für Innere Medizin I, Universitätsklinikum, Freiburg, Germany;
14. Department of Medicine II, University Hospital Goethe, Frankfurt, Germany;
15. Thoraxklinik am Universitätsklinikum Heidelberg, German Center for Lung Research (DZL), Heidelberg, Germany;