[1] Univ Amsterdam, Acad Med Ctr, Dept Resp Med, Amsterdam, Netherlands
[2] Univ Amsterdam, Acad Med Ctr, Dept Intens Care, Amsterdam, Netherlands
[3] ARCN, Expt Asthma Res, Prior Area Asthma & Allergy, Res Ctr Borstel,Leibniz Ctr Med & Biosci, Borstel, Germany
[4] German Ctr Lung Res DZL, Borstel, Germany
[5] Hosp Univ Vall dHebron, Serv Pneumol, Inst Recerca Vall Vall dHebron, Barcelona, Spain
[6] Univ Heidelberg Hosp, Thoraxklin, Dept Pneumol & Crit Care Med, Heidelberg, Germany
[7] Univ Manchester, Inst Inflammat & Repair, Wythenshawe Hosp, Manchester, Lancs, England
[8] Reg Hosp Mullingar, Resp & Sleep Diagnost Dept, Mullingar, Ireland
[9] Sapienza Univ Rome, Paediat & Infantile Neuropsychiat Dept, Rome, Italy
[10] Imperial Coll London, Natl Heart & Lung Inst, Airway Dis Infect Sect, London, England
[11] Kings Coll Hosp London, Bronchoscopies & Pulonary Nodule Serv, London, England