心脏支架，长这样！百万冠心病患者的保命“神器”
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| MP4 | N/A | 480P | Download |
| MP4 | N/A | 480P | Download |
| MP4 | N/A | 480P | Download |
| MP4 | N/A | 360P | Download |
| MP4 | N/A | 360P | Download |
| MP4 | N/A | 360P | Download |
| AUDIO | |||
| MP4 | N/A | mp4a.40.2 | Download |
| MP4 | N/A | mp4a.40.5 | Download |
| MP4 | N/A | mp4a.40.2 | Download |
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这是一个心脏支架，别看它只有2-5毫米的大小，却能卖到上万元，心脏支架为什么这么贵？它是怎样工作的呢？
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