[Studies of geriatric cerebral artery diseases by cerebral angiography].
D000368:Aged; D000369:Aged, 80 and over; D002533:Cerebral Angiography; D002539:Cerebral Arterial Diseases; D002561:Cerebrovascular Disorders; D006801:Humans
CEREBRAL ANGIOGRAPHY/in old age; CEREBROVASCULAR DISORDERS/in old age