1. University of Giessen and Marburg Lung Center (UGMLC), University Hospital Giessen, Justus Liebig University of Giessen Giessen Germany
2. Department of General and Thoracic Surgery University Hospital Giessen, Justus Liebig University of Giessen Giessen Germany
3. Department of Thoracic Surgery Kerckhoff Heart and Lung Center Bad Nauheim Germany
4. Institute of Medical Virology Justus Liebig University of Giessen Giessen Germany