1. Cerrahpasa Faculty of Medicine, Department of Pulmonary Diseases Istanbul University‐Cerrahpasa Istanbul Turkey
2. Faculty of Medicine, Department of Biostatistics Demiroglu Bilim University Istanbul Turkey
3. Comprehensive Allergy Center, Department of Dermatology and Allergy Charité, Universitätsmedizin Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
4. Department of Pulmonary Medicine University Hospital Montpellier Montpellier France
5. University Hospital Montpellier MACVIA‐France Montpellier France
6. Center for Research in Health Technologies and Information Systems, CINTESIS, Faculdade de Medicina Universidade do Porto Porto Portugal
7. Allergy Unit Instituto e Hospital CUF Porto Porto Portugal