1. Department of Clinical Physiology in Linköping, and Department of Health, Medicine and Caring Sciences, Linköping University , Linköping S-581 83 , Sweden
2. Department of Clinical Physiology, Research and Development, Växjö Central Hospital , Region Kronoberg, Växjö , Sweden
3. Clinical Physiology, Clinical Scienes, Lund University , Lund , Sweden
4. Research Unit Hypertension and Cardiovascular Epidemiology, Department of Cardiovascular Sciences, University of Leuven , Leuven , Belgium
5. Department of Clinical Physiology, Blekinge Hospital , Karlskrona , Sweden
6. Department of Clinical Sciences, Division of Respiratory Medicine, Allergology, and Palliative Medicine, Lund University , Lund , Sweden
7. Department of Clinical Physiology, Kalmar County Hospital , Kalmar , Sweden