1. Department of Medicine and Care, Faculty of Health Sciences, Linköping University, Linköping, Sweden
2. Department of Neurophysiology, University Hospital, Linköping, Sweden
3. Department of Cardiology, Linköping University Hospital, Linköping, Sweden
4. Department of Internal Medicine, County Hospital Ryhov, Jönköping, Sweden
5. Department of Neuroscience and Locomotion, Faculty of Health Sciences, Linköping University, Linköping, Sweden
6. School of Health Sciences and Social Work, Växjö University, Växjö, Sweden