1. Department of Respiratory Medicine Hannover Medical School HannoverGermany
2. Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH) Member of the German Center for Lung Research (DZL) HannoverGermany
3. Grosshadern Medical Clinic and Policlinic V LMU Munich University Hospital MunichGermany
4. Pulmonology Medical Clinic Freiburg University Hospital FreiburgGermany
5. Internal Medicine/Department of Pneumology Leipzig University Hospital LeipzigGermany
6. Department of Cardiovascular Surgery Hamburg‐Eppendorf University Hospital HamburgGermany
7. Internal Medicine V University Hospital of Saarland Homburg SaarGermany
8. Department of Pneumology Ruhrlandklinik West German Center for Lung Transplantation University Hospital Essen University Duisburg‐Essen Essen Germany
9. Department of Cardiothoracic and Vascular Surgery German Heart Institute Berlin DZHK (German Center for Cardiovascular Research) BerlinGermany
10. Novartis Pharma GmbH NurembergGermany
11. Department of Cardiothoracic Surgery Newark Beth Israel Medical Center Children's Hospital of New Jersey Newark New Jersey