| Affiliation: | 1. University of Basle, Division of Diagnostic and Interventional Neuroradiology, Department of Radiology, Petersgraben, Basle, Switzerland;2. Stanford University Medical Center, Department of Radiology, Neuroradiology Division, Stanford, California, USA;3. Stanford University Medical Center, Department of Radiology, Stanford, California, USA;4. Stanford University Medical Center, Department of Neurosurgery, Stanford, California, USA;5. Stanford University Medical Center, Department of Neurology, Stanford, California, USA |
