[1] Charite Univ Med Berlin, Inst Biometrie & Klin Epidemiol, Berlin, Germany
[2] Univ Klinikum Carl Gustav Carus Dresden, Klin & Poliklin Dermatol, Dresden, Germany
[3] Tech Univ Dresden, Univ AllergieCtr, Dresden, Germany
[4] Hannover Med Sch, Klin Dermatol Allergol & Venerol, Hannover, Germany
[5] Univ Klinikum OWL Bielefeld, Univ Klinikum Kinder & Jugendmed Kinder Zentrum B, Bielefeld, Germany
[6] Tech Univ Munich, Klin & Poliklin Dermatol & Allergol Biederstein, Klinikum Rechts Isar, Munich, Germany
[7] Univ Erlangen Nurnberg, Hautklin, Erlangen, Germany
[8] Charite Univ Med Berlin, Klin Dermatol Venerol & Allergol, Berlin, Germany
[9] Univ Klinikum Carl Gustav Carus Dresden, Klin & Poliklin Kinder & Jugendmed, Dresden, Germany
[10] Deutsch Allergie & Asthmabund eV, Monchengladbach, Germany
[11] Klin Hallerwiese Cnopfsche Kinderklin, Padiat & Allergol, Nurnberg, Germany
[12] Charite Univ Med Berlin, Inst Sozialmed Epidemiol & Gesundheitsokon, Berlin, Germany
[13] Charite Univ Med Berlin, Klin Padiat Schwerpunkt Pneumol Immunol & Intens, Berlin, Germany