1. Division of ENT Diseases Department of Clinical Sciences, Intervention and Technology Karolinska Institutet Stockholm Sweden
2. Department of ENT Diseases Karolinska University Hospital Stockholm Sweden
3. Asthma and Allergy Clinic Outpatient Unit (adults) Department of Internal Medicine South Alvsborgs Central Hospital Boras Sweden
4. Departments of Biological and Environmental Sciences Gothenburg University Gothenburg Sweden
5. Immunology and Allergy Unit Department of Medicine Solna Karolinska Institutet Stockholm Sweden
6. ABC Labs Biomedicum Stockholm Sweden
7. Laboratory of Clinical and Experimental Allergy Research Department of Otorhinolaryngology Malmö Lund University Skåne University Hospital Malmö Sweden