[1] Ludwig Maximilians Univ Munchen, Dr von Hauner Childrens Hosp, Dept Paediat Allergol, Munich, Germany
[2] Comprehens Pneumol Ctr, Munich CPC M, Munich, Germany
[3] German Ctr Lung Res DZL, Munich, Germany
[4] Helmholtz Zentrum Munich, Inst Asthma & Allergiepravent IAP, Deutsch Forschungszentrum Gesundheit & Umwelt Gmb, Munich, Germany
[5] LungenClin Grosshansdorf GmbH, Grosshansdorf, Germany
[6] Airway Res Ctr North ARCN, Grosshansdorf, Germany
[7] Univ Marburg, Univ Childrens Hosp Marburg, Marburg, Germany
[8] Univ Giessen Marburg Lung Ctr UGMLC, Giessen, Germany
[9] Hannover Med Sch, Dept Paediat Pneumol Allergol & Neonatol, Hannover, Germany
[10] Biomed Res Endstage & Obstruct Lung Dis Hannover, Hannover, Germany
[11] LungenClin Grosshansdorf, Pulm Res Inst, Grosshansdorf, Germany
[12] Univ Lubeck, Inst Med Biometry & Stat, Univ Med Ctr Schleswig Holstein, Lubeck, Germany
[13] Univ Hosp Schleswig Holstein, Internal Med Dept 1, Campus Kiel, Kiel, Germany