Assertion: carotid endarterectomy | /r/CapableOf | provide protection
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text: The Carotid Endarterectomy and Prevention of Cerebral Ischemia in Symptomatic Carotid Stenosis study67 attempted to determine whether carotid endarterectomy provides protection against subsequent cerebral ischemia in men with ischemic cerebral hemispheric symptoms and >50% ipsilateral internal carotid artery diameter stenosis as measured by arteriography.