1. Department of Internal Medicine IIUniversity of Giessen and Marburg Lung Center and Member of the German Center of Lung ResearchGiessenGermany
2. Department of MedicineImperial College LondonLondonUK
3. Respiratory Medicine and Cardiology SectionDepartment of Internal MedicineCenter for Pulmonary Hypertension and Pulmonary Vascular DiseaseMission Medical HospitalWürzburgGermany
4. Department of PneumologyUniversity Hospital Hamburg‐EppendorfHamburgGermany
5. Department of Internal Medicine IINeuwittelsbach Academic HospitalLudwig Maximilians UniversityMunichGermany
6. Division of PulmonologyMedical University of GrazGrazAustria
7. Department III of Internal Medicine and Cologne Cardiovascular Research CenterCologne University Heart CentreCologneGermany
8. Bayer AGBerlinGermany
9. Bayer HealthCare Company LtdBeijingChina
10. Vectura GmbHGautingGermany