1. School of Health Sciences, Jönköping University, Jönköping, Sweden
2. Ambulance Services, Skaraborg Hospital, Skövde, Sweden
3. Department of Clinical Neurophysiology, Linköping University Hospital, Linköping, Sweden
4. Department of Health and Caring Sciences, Western Norway University of Applied Sciences, Bergen, Vestlandet, Norway
5. Department of Molecular and Clinical Medicine, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden