1. Institute for Diagnostic and Interventional Radiology
2. German Center for Lung Research (BREATH), Hannover, Germany
3. Novartis Institutes for Biomedical Research, Basel, Switzerland
4. Novartis Pharma GmbH, Clinical Research Respiratory, Nuremberg, Germany; and
5. Department of Cardiology and Angiology, and
6. Department of Respiratory Medicine, Hannover Medical School, Hannover, Germany
7. Fraunhofer Institute of Toxicology and Experimental Medicine, Hannover, Germany