1. Institute of Functional and Applied Anatomy, Hannover Medical School, Hannover, Germany
2. BREATH (Biomedical Research in Endstage and Obstructive Lung Disease Hannover), Member of the German Center for Lung Research, Hannover, Germany
3. Alveolix AG and ARTORG Center, University of Bern, Bern, Switzerland
4. Biochemistry and Molecular Biology Department, Faculty of Biology, and Research Institute “Hospital 12 de Octubre,” Complutense University Madrid, Madrid, Spain
5. Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio; and
6. Institute of Vegetative Anatomy, Charité–Universitaetsmedizin Berlin, Berlin, Germany