1. Department of Immunology, Allergology, Rheumatology The Infla‐Med Centre of Excellence Faculty of Medicine and Health Sciences University of Antwerp Antwerp Belgium
2. Department of Immunology, Allergology, Rheumatology Antwerp University Hospital Antwerp Belgium
3. Department of Immunology and Allergology AZ Jan Palfijn Gent Ghent Belgium
4. Department of Paediatrics The Infla‐Med Centre of Excellence Faculty of Medicine and Health Sciences University of Antwerp Antwerp Belgium
5. Department of Paediatrics Antwerp University Hospital Antwerp Belgium
6. Allergy Clinic Department of Dermatology and Allergy Gentofte Hospital Hellerup Denmark
7. Department of Clinical Medicine University of Copenhagen Copenhagen Denmark