Johns Hopkins University, Johns Hopkins University - Department of Radiology, Louisiana State University, Baton Rouge, Louisiana State University, Baton Rouge, Thomas Jefferson University, University of Massachusetts Worcester - Department of Neurology, Rutgers, The State University of New Jersey - New Jersey Medical School, University of Massachusetts Memorial Medical Center, Rowan University - Cooper Medical School, Mayo Clinic, Henri-Mondor/Albert-Chenevier Hospital, National University of Singapore (NUS) - National University Hospital, Stanford University - Stanford University Medical Center, Harvard University - Harvard Medical School, University of Toronto - Saint Michael's Hospital, Harvard University - Brigham and Women's Hospital, University Hospital of Limoges, University of Hamburg - University Medical Center Hamburg-Eppendorf, McGovern Medical School - Department of Neurology, Yeshiva University - Montefiore Medical Center, University of Massachusetts Worcester - UMass Chan Medical School, Lübeck GmbH, Oregon Health and Science University, Bordeaux University Hospital - CHU Bordeaux, University of Florence - Azienda Ospedaliero Universitaria Careggi, Universidade do Porto - Centro Hospitalar Universitário do Porto, University of Cincinnati - University of Cincinnati Medical Center, University of Montpellier - Gui-de-Chauliac Hospital, University of Toronto - Saint Michael's Hospital, University of Toronto - Saint Michael's Hospital, Tokyo Metropolitan Tama Medical Center, University of Southern California - Keck School of Medicine, Thomas Jefferson University, New York Medical College - Westchester Medical Center, Sorbonne University - Interventional Neuroradiology Unit, University of Chicago - Medical Center, Boston University - Department of Neurology, Universidade do Porto - Centro Hospitalar Universitário do Porto, Yeshiva University - Montefiore Medical Center, Yeshiva University - Montefiore Medical Center, Cedars Sinai Medical Center - Department of Neurosurgery, Heidelberg University - University Hospital Heidelberg, University of Montpellier - Gui-de-Chauliac Hospital, University of Lorraine - INSERM U1254, University Hospital Münster, Harvard University - Brigham and Women's Hospital, Paracelsus Medical University Salzburg, Rowan University - Cooper Medical School, University of California, Los Angeles (UCLA) - Department of Neurology and Comprehensive Stroke Center, Fondazione Policlinico Universitario A. Gemelli IRCCS, Fondazione Policlinico Universitario A. Gemelli IRCCS, Civil Hospital Marie Curie, University of Amsterdam - University Medical Center, Hôpitaux de Paris (AP-HP) - Hôpital Henri Mondor, Université Libre de Bruxelles (ULB) - Erasme University Hospital, Harvard University - Massachusetts General Hospital, University of Toronto - Saint Michael's Hospital, Université Libre de Bruxelles (ULB) - Erasme University Hospital and Harvard University - Massachusetts General Hospital

affiliation not provided to SSRN, Edward Francis Small Teaching Hospital, Michigan State University, Edward Francis Small Teaching Hospital, Edward Francis Small Teaching Hospital, Edward Francis Small Teaching Hospital, Edward Francis Small Teaching Hospital, affiliation not provided to SSRN, affiliation not provided to SSRN, Edward Francis Small Teaching Hospital, Harvard University - Brigham and Women's Hospital, Edward Francis Small Teaching Hospital, Edward Francis Small Teaching Hospital, Edward Francis Small Teaching Hospital, Edward Francis Small Teaching Hospital, affiliation not provided to SSRN, Edward Francis Small Teaching Hospital, Harvard University - Brigham and Women's Hospital and Edward Francis Small Teaching Hospital

affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Harvard University - Brigham and Women's Hospital, affiliation not provided to SSRN and affiliation not provided to SSRN