[1] Univ Montpellier, CHU Montpellier, PhyMedExp, INSERM,CNRS, Montpellier, France
[2] Dept Resp Med & Allergy, Lung & Allergy Res Unit, Lund, Sweden
[3] Univ Leicester, NIHR BRC Resp Med, Inst Lung Hlth, Dept Infect Immun & Inflammat, Leicester, Leics, England
[4] Ghent Univ Hosp, Dept Resp Dis, Ghent, Belgium
[5] Univ Marseille, Marseille, France
[6] Imperial Coll, Natl Heart & Lung Inst, London, England
[7] Imperial Coll London, Dept Paediat, London, England
[8] Skane Univ Hosp, Dept Resp Med & Allergol, Lund, Sweden
[9] QPS Netherlands, Resp & Allergy Res, Groningen, Netherlands
[10] Glenfield Hosp, Resp Biomed Res Unit, Coll Life Sci, Dept Resp Sci, Leicester, Leics, England
[11] Univ Hosp Southampton NHS Fdn Trust, Southampton, Hants, England
[12] Semmelweis Univ, Natl Koranyi Inst Pulmonol, Budapest, Hungary
[13] Semmelweis Univ, Dept Publ Hlth, Budapest, Hungary
[14] Imperial Coll London, Dept Resp Med, London, England
[15] Univ Manchester, Div Infect Immun & Resp Med, Manchester, Lancs, England
[16] Univ Athens, Pediat Clin 2, Allergy Dept, Athens, Greece
[17] Univ Ferrara, Resp Med, Ferrara, Italy
[18] Univ Leicester, Dept Infect Immun & Inflammat, NIHR Leicester Biomed Res Ctr, Inst Lung Hlth, Leicester, Leics, England
[19] Univ Edinburgh, Ctr Populat Hlth Sci, Allergy & Resp Res Grp, Edinburgh, Midlothian, Scotland
[20] Woodbrook Med Ctr, Loughborough, Leics, England
[21] Athens Chest Hosp, Resp Med Dept 7, Athens, Greece
[22] Athens Chest Hosp, Asthma Ctr, Athens, Greece
[23] Univ Bern, Inst Social & Prevent Med, Bern, Switzerland
[24] Athens Chest Hosp, Resp Med Dept 7, Athens, Greece