[Follow-up study on extra-intracranial arterial bypass surgery for cerebral ischemia].
D000328:Adult; D002545:Brain Ischemia / Q000401:mortality / Q000601:surgery*; D002533:Cerebral Angiography; D002548:Cerebral Revascularization; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged