美国心脏病协会统计数据显示，卒中为第三大致死性疾病，同时也是导致永久严重残疾的主要原因。

Stroke is the No. 3 killer and a leading cause of long-term severe disability in the United States, according to American Heart Association statistics.

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为了研究颈动脉支架与颈动脉内膜剥脱术在长期对于防止卒中方面有同样的效果，来自SAPPHIRE试验其后三年的随访结果现在公布了。

To investigate whether carotid stenting can provide the same degree of long-term protection against stroke as endarterectomy, 3-year follow-up results from SAPPHIRE have now been published.

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