1. Institute of Functional and Applied Anatomy, and
2. Biomedical Research in Endstage and Obstructive Lung Disease Hannover, Member of the German Center for Lung Research (DZL) Hannover Medical School, Hannover, Germany
3. REBIRTH, Cluster of Excellence, Hannover, Germany
4. Department of Internal Medicine, and
5. Universities of Giessen and Marburg Lung Center, Member of the German Center for Lung Research (DZL), Justus Liebig University Giessen, Giessen, Germany
6. University of Vermont College of Medicine, Burlington, Vermont; and
7. Department of Bioengineering, University of Colorado Denver, Denver, Colorado