1 Section of Rhinology and Allergy, Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Marburg, Germany.
2 Paediatric Pulmonology and Allergy, Children's Doctor Service, Heidelberg, Germany.
3 Medical Department, Clinical Development, ALK-Abelló Arzneimittel GmbH, Hamburg, Germany.
4 ALK A/S, Research and Development, Translational Research, Immunology, Hørsholm, Denmark.
5 Faculty of Medicine (and University Hospital) Carl Gustav Carus, Department of Otorhinolaryngology Head and Neck Surgery, Technische Universität Dresden, Dresden, Germany.