1. Department of Thoracic Surgery and Karl-Landsteiner-Institute, Clinic Floridsdorf, 1210 Vienna, Austria
2. Department of Respiratory and Critical Care Medicine, Karl-Landsteiner-Institute for Lung Research and Pulmonary Oncology, Clinic Floridsdorf, 1210 Vienna, Austria
3. Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria