[1]Univ Ferrara, St Anna Univ Hosp, Pulm Div, Ferrara, Italy.
[2]Natl Heart & Lung Inst, London, England.
[3]Univ Paris Cite, Hop & Inst Cochin, APHP Ctr, Paris, France.
[4]Univ Michigan, Ann Arbor, MI USA.
[5]Univ Alabama Birmingham, Div Pulm Allergy & Crit Care Med, Birmingham, AL USA.
[6]Fukushima Med Univ, Fukushima, Japan.
[7]China Japan Friendship Hosp, Beijing, Peoples R China.
[8]Aristotle Univ Thessaloniki, G Papanikolaou Hosp, Sch Med, Pulmonol Dept, Thessaloniki, Greece.
[9]Genentech Inc, South San Francisco, CA USA.
[10]Roche Prod Ltd, Welwyn Garden City, England.
[11]Philipps Univ Marburg UMR, German Ctr Lung Res DZL, Dept Med Pulm Crit Care & Sleep Med, Marburg, Germany.
[12]Univ Leicester, Inst Lung Hlth, Dept Resp Sci, Leicester, England.