[1] Univ Southampton, Natl Inst Hlth Res Southampton Resp Biomed Res Un, Southampton SO17 1BJ, Hants, England
[2] Univ Southampton, Clin & Expt Sci, Southampton SO17 1BJ, Hants, England
[3] Heidelberg Univ, Ctr Interstitial & Rare Lung Dis, Dept Pneumol, Thoraxklin, Heidelberg, Germany
[4] German Ctr Lung Res Germany, Translat Lung Res Ctr Heidelberg, Heidelberg, Germany
[5] Inst Nacl Enfermedades Resp, Mexico City, DF, Mexico
[6] Hop Bichat Claude Bernard, Pneumol, Paris, France
[7] German Ctr Lung Res, Airway Res Ctr North, Lung Clin Grosshansdorf, Pulm Res Inst, Grosshansdorf, Germany
[8] Univ Hosp Leuven, Dept Resp Med, Leuven, Belgium
[9] Peking Union Med Coll Hosp, Beijing, Peoples R China
[10] Boehringer Ingelheim France SAS, Paris, France
[11] Boehringer Ingelheim Pharma GmbH & Co KG, Ingelheim, Germany
[12] Univ Duisburg Essen, Univ Hosp, Ruhrlandklin, Essen, Germany