[1] Alfred Hlth, Dept Allergy Immunol & Resp Med, Melbourne, Vic, Australia
[2] Monash Univ, Dept Med, Melbourne, Vic, Australia
[3] Duisburg Essen Univ, Interstitial & Rare Lung Dis Unit, Ruhrlandklin, Univ Hosp, Essen, Germany
[4] Siena Univ Hosp, Sect Resp Dis & Lung Transplantat, Dept Clin Med & Neurosci, Siena, Italy
[5] Univ Miami, Miller Sch Med, Miami, FL 33136 USA
[6] Maria Ferrer Hosp, Buenos Aires, DF, Argentina
[7] Boehringer Ingelheim GmbH & Co KG, Ingelheim, Germany
[8] Boehringer Ingelheim Int GmbH, Ingelheim, Germany
[9] Aarhus Univ Hosp, Dept Resp Dis & Allergy, Aarhus, Denmark