1 Department of Neurosciences and Mental Health (Neurology), Hospital Santa Maria, Lisbon, Portugal (D.A.d.S.).
2 Institute of Anatomy, Faculdade de Medicina, Universidade de Lisboa, Portugal (D.A.d.S.).
3 Stroke Unit, Department of Neurology, University of Oslo, Norway (E.C.S.).
4 The Norwegian Air Ambulance Foundation, Oslo, Norway (E.C.S.).
5 Department of Neurology and Sergievsky Center, Vagelos College of Physicians and Surgeons, and Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY (M.S.V.E.).
6 New York-Presbyterian Hospital/Columbia University Irving Medical Center (M.S.V.E.).