Amy K Guzik - Chobanian & Avedisian School of Medicine, Boston University;Chobanian & Avedisian School of Medicine, Boston University;Chobanian & Avedisian School of Medicine, Boston University;National Hospital Organization, Osaka National Hospital;St Anne's University Hospital, Masaryk University;2nd Department of Neurology (Anna Czlonkowska, M.A.K.), Institute of Psychiatry and Neurology, Warsaw, Poland;University Hospital Brno, Masaryk University;Department of Neurology (O.Y.M.),, Alexandria University;Department of Neurology (H.R.V., K.U.),, Cleveland Clinic;Bordeaux Population Health Research Center, Centre Hospitalier de l'Université de Bordeaux (E.L.),;"Attikon" University Hospital, National and Kapodistrian University of Athens;Ohio Health Riverside Methodist Hospital (A.I.L.);Neurology Department (J.D., Robin Lemmens),, Leuven University Hospital;University of Tennessee Health Science Center;Cooper Neurological Institute (J.E.S., J.W.),, Cooper University Hospital;Rhode Island Hospital, Brown University;Stroke Center (D.A.S.),, Centro Hospitalar Universitário Lisboa Central-CHULC;Institute of Anatomy (D.A.S.),, Universidade de Lisboa;Grady Memorial Hospital, Emory University School of Medicine;University of Oslo, University of Oslo;Departmento de Neurologia, Institute for Neurological Research-FLENI;Stroke Unit (S.D.S.),, Ramos Mejia Hospital;Melbourne Brain Centre at the Royal Melbourne Hospital, University of Melbourne;Alice Ma, Royal North Shore Hospital;Department of Neurophysiology (J.O.T),, Liverpool Hospital;Department of Neurology (M.W.P.),, Liverpool Hospital;Departments of Neurology (Shaloo Singal) and Radiology (L.-A.S.),, Monash Medical Centre;School of Clinical Sciences at Monash Health, Monash University;Department of Neurology (Rodrigo Tomazini Martins),, Mater Hospital;Department of Neurology (Chris Enzinger),, Medical University of Graz;Department of Neurology and Division of Neuroradiology (T.G.),, Medical University of Graz;Department of Neurology (Aminur Rahman),, Sir Salimullah Medical College;Hopital Erasme (T.B., N.L.),;Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel;Department of Neurology (P.V.),, University Hospitals Antwerp;Department of Translational Neuroscience (P.V.),, University of Antwerp;Hospital das Clínicas (A.B.C., I.L.S.),, São Paulo University;Department of Neurology and Interventional Neuroradiology (R.C.T.H.),, Hospital de Base de São José do Rio Preto;Hospital São Carlos, Nossa Senhora da Conceição Hospital;Moinhos de Vento Hospital (D.L.M.C.),;Hospital de Base do Distrito Federal (L.C.R.), Brasilia, Brazil;St. Anna University Hospital;Department of Neurology (Luciana Catanese),, McMaster University;Department of Diagnostic Radiology (E.A.C.),, Dalhousie University;Hotchkiss Brain Institute, University of Calgary;Royal University Hospital (M.E.K., Lissa Peeling),;Sunnybrook Health Sciences Centre, University of Toronto;Hopital Enfant Jesus (Pascale Lavoie),, Centre Hospitalier de l'Université Laval;Toronto Western Hospital (A.P.),, University of Toronto;Neuroradiology Department (R.R.),, Instituto de Neurocirugía Dr. Asenjo;Department of Neurology (H.-S.C.),, General Hospital of Northern Theater Command;Department of Neurology (Y.C., Foshan Sanshui District People's Hospital;Interventional Neuroradiology (X.H., Z.M.),, Beijing Tiantian Hospital;Department of Neurology, Sestre Milosrdnice University Hospital Center;Department of Neurology (Marina Bralic),, Clinical Hospital Center Rijeka;Department of Neurology, Sveti Duh University Hospital - Zagreb;Faculty of Medicine, J.J. Strossmayer University of Osijek;Department of Neurology (A.B.C.-Q.),, Hospital Departamental Universitario del Quindío San Juan de Dios;Department of Neurology (O.E.L.-S.),, Clínica de la Costa;Department of Neurology (Martin Cabal),, Faculty Hospital Ostrava;Department of Neurology (D.T.),, Blansko Hospital;Oblastní Nemocnice Trutnov a.s.;Faculty of Medicine and University Hospital, Charles University;Neurology (H.H.),, Hospital Příbram;Uherskohradišťská Hospital (E.H.),;Department of Neurology, Thomayer University Hospital Prague;Neurocenter (L.J.),, Regional Hospital Liberec;Neurology (Jana Kadlcikova),, Hospital Vyskov;Igor Karpowicz, Regional Hospital Karlovy Vary;Ostrava (L.K.),;Na Homolce Hospital;Third Faculty of Medicine, Charles University and University Hospital Kralovske Vinohrady;Department of Neurology (J.N.E.S.O.),, Krajská zdravotní, a.s.-Hospital Chomutov;Karvina Mining Hospital (H.P.),;Neurology (Martin Reiser, České Budejovice Hospital;Charles University, General University Hospital in Prague;Department of Neurology (V.R.),, University Hospital Plzen;Department of Neurology (O.S.),, Hospital Jihlava;Masaryk University, University Hospital Brno;Oblastni Nemocnice Kladno (L.S.),;Martin Sramek),, Central Military Hospital in Prague;Nemocnice Třinec, Lenka Zakova;Copenhagen University Hospital;Stroke Center (H.K.I., T.C.T.), Rigshospitalet, University of Copenhagen;Zealand University Hospital, University of Copenhagen;El hussein Alzahar University Hospital;Turku University Hospital, Turku University;Department of Radiology (K.A.),, Turku University Hospital;Helsinki University Hospital, University of Helsinki;Stroke Unit, Bayonne Hospital Neurology;Stroke Unit, Libourne Hospital Neurology (Philippe Casenave),;Centre Hospitalier d'Arcachon-Neurologie (Maria Dan),;Stroke Unit, Agen Hospital Neurology (J.-M.F.),;Neuroradiologie Interventionelle (J.-C.G.),, Brest University Hospital;Brest University Hospital;Department of Neurology (C.S.),, Rothschild Foundation Hospital;Lariboisiere Hospital (Peggy Reiner),;Stroke Unit, Bordeaux University Hospital;University Hospital, Goethe University;Department of Neurology, Albertinen Krankenhaus;Department of Neurology and Stroke (Joshua Mbroh, Eberhard-Karls University;Hertie Institute for Clinical Brain Research (Joshua Mbroh, S.P.),, Eberhard-Karls University;Department of Neurology (Simon Nagel),, Klinikum Ludwigshafen;Department of Neurology, Heidelberg University Hospital;Berlin Institute of Health, Charité-Universitätsmedizin Berlin;Klinik und Poliklinik für Neurologie, Universitätsklinikum Hamburg-Eppendorf (Götz Thomalla),;AHEPA University Hospital, Aristotle University of Thessaloniki;Stroke Unit (O.K.),, Metropolitan Hospital;Hospital General San Juan de Dios (J.D.B.G.),;Mazumdar Shaw Medical Center (V.H.), Bangalore, Karnataka, India;Department of Neurology (Bindu Menon),, Apollo Specialty Hospitals Nellore;Sir JJ Hospital, Grant Medical College;Mazumdar Shaw Medical Center (C.P.), Bangalore, Karnataka, India;Sree Chitra Tirunal Institute for Medical Sciences and Technology (P.N.S.),;Faculty of Medicine, Udayana University;Dr. Soetomo General Hospital Surabaya, Universitas Airlangga;School of Medicine, Zanjan University of Medical Sciences;Imam Reza Hospital, Tabriz University of Medical Sciences;Neurology Department (T.A.R., S.I.S.),, Hillel Yaffe Medical Center;Neurointerventional Unit (S.A.K., Levite Ronen),, Shamir Medical Center;Stroke Unit (Maurizio Acampa),, University of Siena;Stroke Center IRCCS Sacro Cuore Don Calabria (A.A.),;Dipartimento di Neuroradiologia Diagnostica e Interventistica Policinico Universitario IRCCS San Martino (Lucio Castellan, C.R.B.), Genova, Italy;Neurology and Stroke Unit (M.L., Michele Romoli), Ospedale Bufalini, Cesena, Italy;Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila;Interventional Neurovascular Unit (Leonardo Renieri),, Careggi University Hospital;Neurological Department (Andrea Salmaggi, Davide Sangalli),, "Alessandro Manzoni" Hospital;Neurologia e Rete Stroke Metropolitana, IRCCS Istituto delle Scienze Neurologiche di Bologna (A.Z.),;Department of Neurosurgery (R.D., Iwate Prefectural Central Hospital;Department of Neurology (H.F.),, Japanese Red Cross Matsue Hospital;Department of Neurosurgery (T.F.),, National Hospital Organization Osaka National Hospital;Department of Endovascular Surgery (K.F.),, Tokyo Medical and Dental University;Department of Neurosurgery (H.I., N.S.),, Kobe City Medical Center General Hospital;NTT Medical Center Tokyo;Department of Neurology (Ryuhei Kono),, Kin-ikyo Chuo Hospital;Shiroyama Hospital (K.M.),;Department of Neurology (Manabu Sakaguchi),, Osaka General Medical Center;Department of Neurology, The Jikei University School of Medicine;Department of Neurology (Kazutaka Sonoda),, Saiseikai Fukuoka General Hospital;Stroke Center (Kenichi Todo),, Osaka University Hospital;Department of Neurology (Fumio Miyashita),, Kagoshima City Hospital;Department of Neurology (N.T.),, Japanese Red Cross Kyoto Daini Hospital;Department of Stroke and Cerebrovascular Diseases (Y.M.),, University of Tsukuba Hospital;Comprehensive Strokology (S.M.),, Fujita Health University School of Medicine;Department of Neurology (N.O.),, Kobe City Medical Center General Hospital;Department of Neurology (Seigo Shindo),, Japanese Red Cross Kummoto Hospital;Osaka Red Cross Hospital (Y.T.),;Department of Neurology (, National Cerebral and Cardiovascular Center;Department of Cerebrovascular Medicine (, National Cerebral and Cardiovascular Center;Stroke Center, Saga Medical Centre Koseikan;Stroke Medicine, Kawasaki Medical School;Department of Neurology and Stroke Treatment, Japanese Red Cross Kyoto Daiichi Hospital;Advanced Brain Research (N.Y.),, Tokushima University;Yokohama Brain and Spine Center (R.Y.),;Department of Stroke Neurology (Yukako Yazawa),, Kohnan Hospital;Toyonaka Municipal Hospital (Y.S.),;Referral and Research Hospital, Kenyatta University Teaching (P.K.W.),;Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine;College of Medicine, The Catholic University of Korea;Department of Neurology (K.-D.S.),, National Health Insurance Service Ilsan Hospital;Keimyung University, Keimyung University School of Medicine;University Clinic of Neurology, University Ss. Cyril and Methodius-Faculty of Medicine;Hospital Sultan Abdul Halim (Y.C.C.),;Department of Medicine (W.A.W.Z.),, National University of Malaysia;Department of Surgery (A.S.J.),, National University of Malaysia;University Hospital Jose Eleuterio Gonzalez, Universidad Autonoma de Nuevo Leon;Department of Neurology (M.M.-M.),, Hospital de especialidades del Centro Médico Nacional Siglo XXI IMSS;"Nicolae Testemitanu" State University of Medicine and Pharmacy;Emergency Medicine Institute (L.P., S.G.), Chisinau, Republic of Moldova;Medical Centers Amsterdam, Amsterdam University;Departments of Neurology (D.W.J.D.) and Neurology and Radiology (D.H.K.D.-N.),, Erasmus University Medical Center Rotterdam;Wellington Hospital, University of Otago-Wellington;Department of Neurology (T.Y.W.),, Christchurch Hospital;Department of Medical Records (T.T.A.),, Federal Medical Centre;Neurology Unit (A.H.B., K.W.W.),, University of Ilorin;Federal Medical Centre Owerri, Federal Medical Centre;Department of Medicine, (T.A.S.) Federal Medical Center;Akershus University Hospital, University of Oslo;Department of Neurology (E.C.S.),, The Norwegian Air Ambulance Foundation;Ministry of Health, Khoula Hospital;Lahore General Hospital (S.A., U.R.),;Departamento de Neurología (L.R.-K., M.Á.V.),, Hospital Nacional Edgardo Rebagliati Martins;St. Luke's Medical Center (P.M.Y.), Global City, Philippines;St. Luke's Medical Center (J.S.H.D., M.C.P.-F., C.O.C.), Quezon City, Philippines;Specialist Hospital Konskie, Jan Kochanowski University;Clinic of Neurology (Aleksander Debiec, J.S.),, Military Institute of Medicine;Department of Neurology (Malgorzata Dorobek), Central Clinical Hospital of the Ministry of Interior and Administration (M.D.), Warsaw, Poland;Institute of Medical Sciences, University of Opole;the Silesian Medical University in Katowice, Medical University of Silesia in Katowice;1st Department of Neurology (H.S.-J.), Institute of Psychiatry and Neurology, Warsaw, Poland;Department of Neurology in Sandomierz (Piotr Sobolewski),, Jan Kochanowski University in Kielce;Medical College, Rzeszow University;Department of Neurology (J.Z.-T.),, Central Clinical Hospital of the Ministry of Interior;Department of Neurology (J.Z.-T.),, Central Clinical Hospital of the Ministry of Internal Affairs and Administration;Neuroradiology Department-Centr, o Hospitalar de Vila Nova de Gaia/Espinho (A.P.A.),;Neurology Department (Mariana Rocha),, Centro Hospitalar Vila Nova de Gaia/Espinho;Department of Neurology (Pedro Castro),, Centro Hospitalar Universitário de São João;Stroke Unit-Hospital Pedro Hispano (V.T.C., P.V.F.), Matosinhos, Portugal;Stroke Unit, Centro Hospitalar Universitário de Lisboa Central;Medicine Department, Centro Hospitalar Universitário de São João;Hospital de Egas Moniz, Centro Hospitalar Lisboa Ocidental;Hospital de Santa Maria-Centro Hospitalar Lisboa Norte (T.P.M.),;Department of Neurology (Miguel Rodrigues),, Hospital Garcia de Orta;Centro Hospitalar Universitário de São João (M.L.S.),;Bucarest University Emergency Hospital (Adela Dimitriade),;Faculty of Medicine, Transilvania University;Department of Neurology, King Fahad Hospital of the University Imam Abdulrahman bin Faisal University Dammam (M.A.H.),;Raffles Hospital (N.V.),;Department of Neurology (G.K., Faculty Hospital Trnava;Jessenius Medical Faculty (G.K., M.M.),, Commenius University;Department of Neurology (G.K.),, Slovak Medical University;(O.A.-M., F.H.-F.),, Complejo Hospitalario Universitario de Albacete;Interventional Neuroradiology (J.B.),, Hospital Clínic de Barcelona;Comprehensive Stroke Center (A.R.-V.),, Hospital Clínic de Barcelona;Department of Neurology (Unidad de Ictus) (A.C.-C.),, Hospital Universitario Ramón y Cajal;Neurology Department, Hospital Universitario Virgen del Rocío;Hospital Universitario Virgen Macarena & Neurovascular Research Laboratory, Instituto de Biomedicina de Sevilla-IbiS;Department of Neuroradiology (M.J.G.S.),, Hospital Universitario Rey Juan Carlos;Department of Neurology (M.G.R.),, Hospital Universitario Rey Juan Carlos;Institute of Neuroscience and Physiology (K.J., University of Gothenburg;Department of Neurology (K.J., Sahlgrenska University Hospital;Karolinska Institute, Karolinska University;Interventional Neuroradiology (G.B.),, University Hospitals of Geneva;Department of Neurology, Bern University Hospital;Neurocenter (Manuel Bolognese),, Cantonal Hospital of Lucerne;Department of Neurology (E.C.),, University Hospitals of Geneva;Bern University Hospital, University of Bern;Radiology and Nuclear Medicine (G.M.K.),, Cantonal Hospital of Lucerne;University Hospital (E.K.),, University of Zurich;Department of Neurology (C.Y.H.),, Tainan Sin Lau Hospital;Ramathibodi Hospital, Mahidol University;Siriraj Hospital, Mahidol University;Eskisehir Osmangazi University;Florya Medicalpark Stroke Center, Istanbul Aydın University;Cleveland Clinic Abu Dhabi, .I.H., S.J.;Charing Cross Hospital, Imperial College Healthcare NHS Trust;Department of Medicine (K.K.),, Nottingham University Hospitals NHS Trust;Neuroradiology, Nottingham University Hospitals NHS Trust;Barking Havering and Redbridge University Hospitals;Barts Health NHS Trust, Royal London Hospital (K.W.;Liqun Zhang, St George's University Hospital;Valley Hospital Health System (D.A.),, Neurosurgeons of NJ;Amita Health and University of Illinois-Chicago;Inova Fairfax Hospital (Z.B.),;Neuroscience and Stroke Program (K.B., O.O.Z.),, Bon Secours Mercy Health St Vincent Hospital;Chicago Stritch School of Medicine, Loyola University;Inova Fairfax Hospital (S.A.C.),, University of Virginia School of Medicine;Michael Chen, Y.R., Rush University Medical Center;Department of Neurology (Alex Chebl),, Henry Ford Health System;Health Science Center, University of Tennessee;Health Science Center, University of Tennessee;Department of Radiology (Marco Colasurdo),, University of Texas Medical Branch;Neurology, UTHealth McGovern Medical School;School of Medicine, Yale University;Brigham and Women's Hospital (S.D.A., A.A.D.), Boston;Baptist Health Medical Center-Little Rock (S.D., K.B.G.), Little Rock, AR;London Health Sciences Centre, Western University;Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School;Department of Neurology (, Massachusetts General Hospital;Neuroscience Center, SSM Health DePaul Hospital;University of Iowa;Santa Barbara Cottage Hospital;Department of Neurology (U.G.),, Saint Louis University School of Medicine;Department of Neurology (A.K.G., S.L.),, Wake Forest Baptist Medical Center;M.H.G.N.P., A.M.K.),, Wayne State University;College of Human Medicine, Michigan State University;School of Medicine, Emory University;Department of Neurosurgery (P.T.K.),, University of Texas;Health Science Center, Texas Tech University;School of Medicine, Southern Illinois University;Virginia Hospital Center (B.S.K.);Baptist Health Medical Group (M.K.K.),, Baptist Health Lexington;Department of Radiology, University of Massachusetts Medical Center;S.L.-H.C.A.,S.C.R.N., N.E.T.),, Community Memorial Hospital;Vascular and Neurointerventional Services (G.L.),, Saint Louis University;Miami Cardiac & Vascular Institute (I.L.),, Miami Neuroscience Institute;T.G.L., D.M.R.-S.),, Dartmouth Hitchcock Medical Center;Department of Neurology & Neurosurgery (S.S.M.),, ECU Health Medical Center;Medical Center, University of Kansas;West Virginia University;Department of Neurology (H.M., A.B.R.),, SUNY Upstate;Department of Neurology, Medical University of South Carolina;Department of Neurosurgery, University at Buffalo;Department of Neurology (F.N.),, Emory University;Department of Neurology (K.N.),, University of Arkansas for Medical Sciences;Ascension St Johns Medical Center (R.H.R.), Tulsa, OK;Riverside Regional Medical Center (Pankajavalli Ramakrishnan),;Hospital, the University of Pennsylvania;University of Colorado School of Medicine (S.S.O.),;Miami Neuroscience Institute (A.K.S.),;UNC School of Medicine (M.J.W.), North Carolina;University of Utah;Hue Central (H.V.L., Q.V.N.),;T.N.P., T.T.N.),, Da Nang Hospital;H.T.P., M.D.T.),, Bach Mai Hospital;Basel University Hospital, University of Basel;Lausanne University Hospital, University of Lausanne;Department of Neurology (S.O.M.),, Federal University of Rio Grande do Sul;Hospital de Clínicas de Porto Alegre (S.O.M.),;Charles University, University Hospital;Boston University, Cooper University Hospital