1. Institute of Virology, Philipps University, Marburg, Germany
2. Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, Oregon, USA
3. Institute for Lung Research, Universities of Giessen and Marburg Lung Center, Philipps University Marburg, German Center for Lung Research (DZL), Marburg, Germany
4. Department of Pulmonary Rehabilitation, Philipps University of Marburg, German Center for Lung Research (DZL), Marburg, Germany
5. Department of Medicine, Pulmonary and Critical Care Medicine, University Medical Center Giessen and Marburg, Philipps University, German Center for Lung Research (DZL), Marburg, Germany