1. Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland
2. Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
3. Department of Public Health and Clinical Medicine, Division of Medicine, The OLIN unit, Umeå University, Umeå, Sweden
4. Krefting Research Center, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
5. Department of Paediatrics, University of Gothenburg, Queen Silvia Children’s Hospital, Gothenburg, Sweden
6. Department of Public Health and Clinical Medicine, Section of Sustainable Health, The OLIN unit, Umeå University, Umeå, Sweden
7. Department of Public Health and Nursing, HUNT Research Centre, Faculty of Medicine and Health Sciences, NTNU, Norwegian University of Science and Technology, Levanger, Norway
8. Levanger Hospital, Nord-Trøndelag Hospital Trust, Levanger, Norway
9. Unit of Clinical Physiology, HUS Medical Diagnostic Center, Helsinki University Central Hospital, Helsinki, Finland
10. University of Helsinki, Helsinki, Finland
11. Wallenberg Center for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden