[1] Weill Cornell Med, Joan & Sanford I Weill Dept Med, New York, NY USA
[2] LungenClin Grosshansdorf GmbH, Grosshansdorf, Germany
[3] Christian Albrechts Univ Kiel, Airway Res Ctr North, German Ctr Lung Res DZL, Grosshansdorf, Germany
[4] Pulm Res Inst Southeast Michigan, Farmington Hills, MI USA
[5] Imperial Coll London, Natl Heart & Lung Inst, London, England
[6] AstraZeneca, Durham, NC USA
[7] AstraZeneca, Morristown, NJ USA
[8] AstraZeneca, Gothenburg, Sweden