Aortocervical and cerebral angiography in extracranial cerebrovascular disease.
D002339:Carotid Arteries / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging*; D006801:Humans; D008722:Methods; D011187:Posture; D014711:Vertebral Artery / Q000000981:diagnostic imaging