Contribution of the circle of Willis to the subclavian steal syndrome.
D000328:Adult; D000368:Aged; D000792:Angiography; D001488:Basilar Artery; D001794:Blood Pressure; D001916:Brachial Artery / Q000503:physiopathology; D016122:Brachiocephalic Trunk / Q000503:physiopathology; D002340:Carotid Artery Diseases / Q000150:complications; D002341:Carotid Artery Thrombosis / Q000503:physiopathology; D002533:Cerebral Angiography; D002539:Cerebral Arterial Diseases / Q000150:complications; D002560:Cerebrovascular Circulation; D002941:Circle of Willis / Q000503:physiopathology*; D003097:Collateral Circulation; D005260:Female; D006801:Humans; D007511:Ischemia / Q000209:etiology; D002546:Ischemic Attack, Transient / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D013348:Subclavian Artery / Q000503:physiopathology; D013349:Subclavian Steal Syndrome / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology*; D013927:Thrombosis / Q000503:physiopathology; D014711:Vertebral Artery / Q000503:physiopathology