[1] Johannes Gutenberg Univ Mainz, Inst Med Biostat Epidemiol & Informat, Mainz, Germany
[2] Regensburg Univ Hosp, Dept Internal Med 2, Pneumol, Regensburg, Germany
[3] Charite Univ Med Berlin, Allergy Ctr, Berlin, Germany
[4] Univ Hosp Bergmannsheil, Med Clin Pneumol Allergol & Sleep Med 3, Bochum, Germany
[5] Ambulante Pneumol Stuttgart, Stuttgart, Germany
[6] Ruhr Univ Bochum, Kinderzentrum Bethel, Klin Kinder & Jugendmed, Bochum, Germany
[7] Ruhr Univ Bochum, Allergy Ctr Ruhr, Bochum, Germany
[8] Mainz Univ Hosp, Med Ctr 3, Pulm Dept, Mainz, Germany