title: Magnetic resonance tomographic angiography of the arterial circle (of Willis).
authors.affiliation: National Hospital, Queen Square, London.
authors.forename: R J
authors.initials: RJ
authors.lastname: Stacey
authors.forename: J B
authors.initials: JB
authors.lastname: Miles
mesh_terms: D002941:Circle of Willis / Q000473:pathology*; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis*; D018810:Magnetic Resonance Angiography; D012680:Sensitivity and Specificity; D014277:Trigeminal Neuralgia / Q000175:diagnosis*