1. Department of Neurology (JW, CK), Copenhagen University Hospital - Herlev and Gentofte; Emergency Medical Services Copenhagen (JW, FF, HCC), Denmark; Emergency Medical Services (SNB), Region Zealand; Department of Neurology (HC), Copenhagen University Hospital - Bispebjerg and Frederiksberg; Department of Clinical Medicine (HC, FF HCC, CK), University of Copenhagen; and Department of Cardiology (FF), Copenhagen University Hospital - Herlev and Gentofte, Denmark.