1. Department of Molecular and Clinical Medicine Institute of Medicine the Sahlgrenska Academy at the University of Gothenburg Gothenburg Sweden
2. Department of Prehospital Emergency Care Sahlgrenska University Hospital, Gothenburg Region Västra Götaland Sweden
3. Centre for Prehospital Research, Faculty of Caring Science, Work Life and Social Welfare University of Borås Borås Sweden
4. Department of Clinical Neuroscience, Institute of Neuroscience and Physiology the Sahlgrenska Academy at the University of Gothenburg Gothenburg Sweden
5. Emergency Medical Service, Skövde Emergency Department, Skövde Region Västra Götaland Sweden
6. Department of Neurology Sahlgrenska University Hospital, Gothenburg Region Västra Götaland Sweden