1. Inova Fairfax HospitalFalls ChurchVAUSA
2. Institut Universitaire de Cardiologie et de Pneumologie de Québec Research CenterLaval UniversityQuebec CityCanada
3. Department of Pulmonary MedicineHospital Clínic‐IDIBAPSUniversity of BarcelonaBarcelonaSpain
4. University of Giessen and Marburg Lung Center (UGMLC)Justus‐Liebig University GiessenGiessenGermany