[1] Hannover Med Sch, Dept Pediat Pneumol Allergy & Neonatol, Hannover, Germany
[2] Tech Univ Munich, Ctr Allergy & Environm, Munich, Germany
[3] Helmholtz Ctr, Munich, Germany
[4] Christian Albrechts Univ Kiel, Inst Clin Mol Biol, Kiel, Germany
[5] Helmholtz Zentrum Munich, Res Unit Mol Epidemiol, Neuherberg, Germany
[6] Hannover Med Sch, Hannover Unified Biobank, Hannover, Germany
[7] Ulm Univ, Inst Epidemiol & Med Biometry, Ulm, Germany
[8] Tech Univ, Univ Childrens Hosp, Dresden, Germany
[9] Marien Hosp, Childrens Dept, Res Inst Prevent Allerg Dis, Wesel, Germany
[10] Ruhr Univ, Dept Expt Pneumol, Bochum, Germany
[11] Albert Ludwigs Univ, Univ Childrens Hosp, Freiburg, Germany
[12] Univ Childrens Hosp, Vienna, Austria
[13] Kinder & Jugendarztpraxis Laub, Rosenheim, Germany
[14] Univ Cologne, Univ Childrens Hosp, Cologne, Germany
[15] Landeskrankenhaus, Univ Teaching Hosp, Childrens Dept, Feldkirch, Austria
[16] Ludwig Maximilians Univ Munchen, Univ Childrens Hosp, Munich, Germany
[17] Univ Groningen, Univ Med Ctr Groningen, Dept Epidemiol, Groningen, Netherlands