1. Department of Pulmonary Medicine; Hannover Medical School; Hannover Germany
2. Biomedical Research in End-Stage and Obstructive Lung Disease Hannover (BREATH); Member of the German Center for Lung Research (DZL); Hannover Germany
3. Department of Pneumology; Ruhrlandklinik, West German Lung Center; University Hospital Essen; Essen Germany
4. Department of Pneumology; Ruhrlandklinik, West German Lung Center; University Duisburg-Essen; Essen Germany
5. Department of Cardiothoracic Surgery; University Hospital Eppendorf; Hamburg Germany
6. Department of Pulmonary Medicine; Charite; Berlin Germany
7. Department of Cardiothoracic Surgery; University Hospital Munich; Germany
8. Department of Cardiothoracic Surgery; University Hospital Leipzig; Germany
9. Eurotransplant International Foundation; Leiden the Netherlands