1. From the Divisions of Neurosurgery (Y.L., D.L.M., P.V., N.R.G.) and Interventional Neuroradiology (Y.L., N.R.G., S.T., Z.-S.S., R.J., F.V., G.R.D.) and the Department of Neurology (D.S.L., S.S., J.L.S.), David Geffen School of Medicine at UCLA, Los Angeles, Calif; the Department of Neurology (A.T.), USC Comprehensive Stroke Center, Keck School of Medicine at USC, Heath Care Consultation Center II, Los Angeles, Calif; and the Neurovascular Service, Department of Medicine (Y.L.), Madigan Army Medical...