1. Max Planck Institute for Heart and Lung Research, Department of Lung Development and Remodeling, member of the German Center for Lung Research (DZL), Bad Nauheim, Germany.
2. Department of Internal Medicine, Universities of Giessen and Marburg Lung Center (UGMLC), member of the DZL, Justus Liebig University, Giessen 35392, Germany.
3. Department of Radiology, UGMLC, member of the DZL, Justus Liebig University, Giessen 35392, Germany.
4. Institute of Biochemistry I, Faculty of Medicine, Goethe University Frankfurt, Frankfurt 60438, Germany.
5. Department of Medicine, Imperial College, London SW7 2AZ, UK.
6. Institute of Pathology and Cytology, Wetzlar 35578, Germany.
7. Department of Pathology, UGMLC, member of the DZL, Justus Liebig University, Giessen 35392, Germany.