1. Department of Clinical Physiology and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
2. Department of Clinical Physiology, Department of Research and Development, Växjö Central Hospital, Region Kronoberg, Växjö, Sweden
3. Clinical Physiology, Clinical Sciences, Lund University, Lund, Sweden
4. Department of Clinical Physiology, Blekinge Hospital, Karlskrona, Sweden
5. Department of Clinical Physiology, Kalmar County Hospital, Kalmar, Sweden
6. Respiratory Medicine and Allergology, Clinical Sciences, Lund University, Lund, Sweden