1. Diagnostic and Interventional Radiology, University Hospital Tuebingen, Germany
2. Internal Medicine II, Department of Oncology, Haematology, Clinical Immunology, Rheumatology and Pneumology, University of Tuebingen, Germany
3. Center for Pulmonology and Thoracic Surgery, Division of Pulmonology, Klinik Schillerhoehe, Gerlingen, Germany