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.).