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International Circulation: There have been some recent randomized clinical trials that have shown the incidence of stent thrombosis did not differ significantly for patients with drug-eluting stents and those with bare metal stents. What is your opinion as to that outcome? 国际循环：最近的一些临床随机试验表明药物洗脱支架与金属裸支架的支架内血栓发生率并无明显差异。您对这一结果有何意见？