About the Authors

Linus Grabenhenrich

Affiliation Institute of Social Medicine, Epidemiology and Health Economics, Charité University Medical Centre Berlin, Berlin, Germany

Stephanie Hompes

Affiliation Department of Dermatology, Charité University Medical Centre Berlin, Berlin, Germany

Hannah Gough

Affiliation Institute of Social Medicine, Epidemiology and Health Economics, Charité University Medical Centre Berlin, Berlin, Germany

Franziska Ruëff

Affiliation Department of Dermatology and Allergology, Ludwig-Maximilian University, München, Germany

Kathrin Scherer

Affiliation Allergy Unit, Department of Dermatology, University Hospital Basel, Basel, Switzerland

Claudia Pföhler

Affiliation Division of Allergy, Department of Dermatology, The Saarland University Hospital, Homburg/Saar, Germany

Regina Treudler

Affiliation Allergy Division, Department of Dermatology, Venerology and Allergy, Universität Leipzig, Leipzig, Germany

Vera Mahler

Affiliation Allergy Division, Department of Allergy, University Hospital Erlangen, Erlangen, Germany

Thomas Hawranek

Affiliation Allergy Department, Department of Dermatology, Paracelsus Private Medical University Salzburg, Salzburg, Austria

Katja Nemat

Affiliation Allergen Laboratory, Department of Pneumology and Allergology, Children’s Hospital, University Hospital Carl Gustav Carus, Dresden, Germany

Alice Koehli

Affiliation Division of Allergology, University Children’s Hospital Zurich, Zurich, Switzerland

Thomas Keil

Affiliation Paediatric Epidemiology, Institute of Social Medicine, Epidemiology and Health Economics, Charité University Medical Centre Berlin, Berlin, Germany

Margitta Worm

margitta.worm@charite.de

Affiliation Anaphylaxis Research, Department of Dermatology, Charité University Medical Centre Berlin, Berlin, Germany

Competing Interests

This work was supported by unrestricted grants from Allergopharma and ALK-Abello. There are no patents, products in development or marketed products to declare. This does not alter the authors’ adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: FR KS CP RT VM TH KN AK MW. Performed the experiments: SH FR KS CP RT VM TH KN AK MW. Analyzed the data: LG HG TK. Wrote the paper: LG. Initiated the project: MW. Monitored data collection of the whole project: SH. Cleaned the data: SH. Revised the manuscript: LG SH HG FR KS CP RT VM TH KN AK TK MW.