1. From the Stroke Center, Service of Neurology (I.A.M., C.W.C., P.N.C., P. Michel) and Department of Diagnostic and Interventional Radiology (F.P., D.C.R., P. Maeder, R.A.M.), Lausanne University Hospital, Switzerland; Department of Neurology, Stroke Center, Neurocenter of Southern Switzerland, Ospedale Civico, Lugano (C.W.C.); Division of Neuroradiology, Hirslanden Group of Private Hospitals, Clinique Cecil, Lausanne, Switzerland (J.-B. Z.); and Institute of Social and Preventive Medicine, University...