Affiliation: | 1.Department of Neurosurgery, Medical Faculty, Heinrich-Heine-University, Moorenstraße 5, D-40225, Düsseldorf, Germany ;2.Institute for Diagnostic and Interventional Radiology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Moorenstraße 5, D-40225, Düsseldorf, Germany ; |