1. Faculty of Health and Society, Department of Care Science, Malmö University, Malmö, Sweden
2. Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland
3. Department of Public Health and Clinical Medicine, Section of Sustainable Health/the OLIN unit, Umeå University, Umeå, Sweden
4. Department of Health Sciences, Luleå University of Technology, Luleå, Sweden
5. Krefting Research Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
6. HUNT Research Centre, Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Levanger, Norway
7. Levanger Hospital, Nord-Trøndelag Hospital Trust, Levanger, Norway
8. Department of Public Health and Clinical Medicine, Division of Medicine, Umeå University, Umeå, Sweden
9. Clinical Research Unit of Pulmonary Diseases, Helsinki University Hospital, Helsinki University and Clinical Research Institute HUCH Ltd, Helsinki, Finland
10. Wallenberg Center for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
11. Espoo City Primary Health Care Services, Finland
12. Unit of Clinical Physiology, HUS Medical Imaging Center, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
13. Faculty of Medicine and Health Technology, University of Tampere, Tampere, Finland
14. University of Helsinki, Helsinki, Finland