1. Department of Otolaryngology, Head and Neck Surgery Universitätsmedizin Mainz Mainz Germany
2. University Hospital Montpellier Montpellier France
3. Department of Otolaryngology, Head and Neck Surgery Universitätsmedizin Tübingen Tübingen Germany
4. Department of Otolaryngology Charité Universitätsmedizin Berlin, Humboldt‐Universität zu Berlin Berlin Germany
5. Division of Internal Medicine, Asthma and Allergy Barlicki University Hospital, Medical University of Lodz Lodz Poland
6. Department of Otolaryngology University Hospital Bercelona Bercelona Spain
7. Skin and Allergy Hospital Helsinki University Hospital Helsinki Finland
8. Faculdade de Medicina da Universidade do Porto Porto Portugal
9. Center for Research in Health Technologies and Information Systems, CINTESIS Universidade do Porto Porto Portugal
10. Allergy Unit Instituto CUF Porto e Hospital CUF Porto Porto Portugal
11. Health Information and Decision Sciences Department ‐ CIDES, Faculdade de Medicina Universidade do Porto Porto Portugal
12. Department of Otolaryngology‐Head and Neck Surgery Eye and Ear University Hospital Beirut Lebanon
13. Comprehensive Allergy Center Department of Dermatology and Allergy Berlin Germany
14. MACVIA‐France Montpellier France
15. Center for Rhinology and Allergology Wiesbaden Germany