Cerebral angiography in posterior fossa revascularization.
D000368:Aged; D002533:Cerebral Angiography / Q000379:methods*; D002548:Cerebral Revascularization / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014715:Vertebrobasilar Insufficiency / Q000000981:diagnostic imaging / Q000601:surgery*