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Identification of Evidence
The National Library of Medicine database (PubMed 1966–2011) was searched electronically in order to identify peer-reviewed publications that contained clinical and technical outcome data for treatment of extracranial carotid artery stenosis. Search terms included 'carotid stenosis', 'stroke', 'carotid endarterectomy', 'carotid angioplasty' and 'carotid stenting'.
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