1. Division of Medicine, Department of Pulmonary Diseases, Turku University Hospital, Turku, Finland;
2. Department of Pulmonary Diseases and Clinical Allergology, University of Turku, Turku, Finland;
3. Medaffcon Oy, Espoo, Finland;
4. Auria Biobank, Turku University Hospital, Turku, Finland;
5. University of Turku, Turku, Finland;
6. GSK, Espoo, Finland;
7. Tampere University Hospital, Tampere, Finland