1. Department of Otorhinolaryngology, Head and Neck Surgery Section of Rhinology and Allergy University Hospital Marburg Philipps‐Universität Marburg Marburg Germany
2. Allergy Clinical Unit Hospital Regional Universitario de Málaga‐UMA‐ARADyAL Málaga Spain
3. Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland