[1] MHH Hannover Med Sch, Dept Resp Med, Hannover, Germany
[2] Imperial Coll London, Natl Heart & Lung Inst, London, England
[3] Royal Brompton Hosp, Natl Inst Hlth Res Clin Res Facil, London, England
[4] Nottingham Univ Hosp, Natl Inst Hlth Res Resp Biomed Res Ctr, City Campus, Nottingham, England
[5] Claude Bernard Lyon 1 Univ, Louis Pradel Hosp, Natl Reference Ctr Rare Pulm Dis, Dept Resp Dis, Lyon, France
[6] Tokushima Univ, Grad Sch Biomed Sci, Tokushima, Japan
[7] Univ Virginia, Div Pulm & Crit Care Med, Charlottesville, VA USA
[8] Inst Nacl Enfermedades Resp, Mexico City, DF, Mexico
[9] Univ Ulsan, Coll Med, Asan Med Ctr, Dept Pulm & Crit Care Med, Seoul, South Korea
[10] Boehringer Ingelheim Pharma GmbH & Co Kg, Biberach, Germany
[11] Boehringer Ingelheim Int GmbH, Ingelheim, Germany
[12] Univ Michigan, Div Pulm & Crit Care Med, Ann Arbor, MI 48109 USA