title: The role of the circle of Willis in graded occlusion of the internal carotid artery in man.
mesh_terms: D000328:Adult; D001783:Blood Flow Velocity; D002343:Carotid Artery, Internal / Q000601:surgery*; D002540:Cerebral Cortex / Q000503:physiopathology; D002560:Cerebrovascular Circulation; D002941:Circle of Willis; D003097:Collateral Circulation; D004569:Electroencephalography; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000601:surgery*; D002546:Ischemic Attack, Transient / Q000503:physiopathology / Q000517:prevention & control; D008297:Male; D012039:Regional Blood Flow; D013345:Subarachnoid Hemorrhage / Q000209:etiology