1. Heart Center University Hospital Cologne, and Cologne Cardiovascular Research Center (CCRC) Cologne Germany
2. University of California Los Angeles Los Angeles CA USA
3. UT Southwestern Medical Center Dallas TX USA
4. Actelion Pharmaceuticals Ltd Allschwil Switzerland
5. Mater Misericordiae University Hospital Dublin Ireland
6. DIMES, University of Bologna and IRCCS, S. Orsola University Hospital Bologna Italy
7. University of Giessen and Marburg Lung Center Giessen, Germany, member of the German Center for Lung Research, and Department of Medicine, Imperial College London London UK
8. Department of Respiratory Medicine Hannover Medical School and German Center for Lung Research Hannover Germany
9. University of Michigan Ann Arbor MI USA
10. Division of Pulmonary and Critical Care Medicine University of California San Diego CA USA
11. Hôpital Universitaire de Bicêtre Université Paris‐Sud Le Kremlin Bicêtre France
12. Cedars‐Sinai Medical Center Los Angeles CA USA
13. Division of Cardiology Medical University of Vienna Vienna Austria