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Date: 2014-12-15 23:36:37
手术资料 心瓣膜更换术 Valve Replacement 简介 心脏内有四个瓣膜,当心室收缩时,瓣膜会负责控制血液流向正确的方向。心脏病或其它疾病都能令瓣膜
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