title: Narrow-minded.
mesh_terms: D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008875:Middle Aged; D056888:Patient Positioning / Q000379:methods*; D014711:Vertebral Artery / Q000000981:diagnostic imaging*; D014715:Vertebrobasilar Insufficiency / Q000000981:diagnostic imaging*