北美颈内动脉狭窄手术治疗与药物治疗协作研究组：无症状颈动脉狭窄：手术与阿司匹林对照 Carotid Artery Stenosis with Asymptomatic Narrowing: Operation Versus Aspirin |
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北美颈内动脉狭窄手术治疗与药物治疗协作研究组：无症状颈动脉狭窄：手术与阿司匹林对照 Carotid Artery Stenosis with Asymptomatic Narrowing: Operation Versus Aspirin |