1. Department of Otorhinolaryngology, Head and Neck Surgery, Section of Rhinology and Allergy University Hospital Marburg Philipps‐Universität Marburg Marburg Germany
2. LETI Pharma GmbH Witten Germany
3. ClinCompetence Cologne GmbH Cologne Germany
4. Institute of Medical Statistics and Computational Biology Faculty of Medicine University of Cologne Cologne North Rhine‐Westphalia Germany
5. Division of Allergy and Immunology Department of Dermatology, Venereology and Allergy Charité‐Universitätsmedizin Berlin Berlin Germany