1. Department of Medicine Bærum HospitalVestre Viken Hospital Trust Drammen Norway
2. Oslo Stroke Unit Department of Neurology Oslo University Hospital Ullevål Norway
3. Norwegian Air Ambulance Foundation Oslo Norway
4. Division of Medicine Department of Neurology Akershus University Hospital Lørenskog Norway
5. Institute of Clinical Medicine University of Oslo Oslo Norway
6. Centre for Neurovascular Diseases Department of Neurology Haukeland University Hospital Bergen Norway