1. From the Department of Neurology (U.F.), and Department of Diagnostic and Interventional Neuroradiology (J.G.), Inselspital, University Hospital Bern, Switzerland; University of Bern, Switzerland (U.F., J.G.); Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, Technical University Munich, Germany (J.K.); Division of Neuroradiology, Department of Medical Imaging (V.M.P.) and Division of Neurosurgery, Department of Surgery (V.M.P.), Toronto Western Hospital,...