[1] Royal Brompton Hosp, London, England
[2] Univ Calif Los Angeles UCLA, David Geffen Sch Med, Los Angeles, CA USA
[3] AstraZeneca, BioPharmaceut Med, Resp & Immunol, Gaithersburg, MD USA
[4] AstraZeneca, BioPharmaceut R&D, Biometr Latestage Dev Resp & Immunol, Warsaw, Poland
[5] Amgen Inc, Global Med Affairs, Thousand Oaks, CA USA
[6] AstraZeneca, BioPharmaceut R&D, Latestage Dev Resp & Immunol, Gaithersburg, MD USA