1. Department of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden
2. Department of Respiratory Medicine and Allergology, Skane University Hospital, Lund, Sweden
3. Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
4. Allergy Centre, Tampere University Hospital, Tampere, Finland
5. Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
6. Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland
7. Department of Pulmonology, University of Tartu and Lung Clinic, Tartu University Hospital, Tartu, Estonia
8. Department of Respiratory Medicine and Allergy, Karolinska University Hospital, Huddinge, Sweden
9. Department of Clinical Science, University of Bergen and Department of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway
10. Department of Otorhinolaryngology, University of Gothenburg, Gothenburg, Sweden
11. Respiratory Medical Affairs, GSK, Solna, Sweden
12. Respiratory Medical Franchise, GSK, Brentford, Middlesex, UK
13. Department of Respiratory Medicine, Bispebjerg Hospital and Copenhagen University, Copenhagen, Denmark