Methods We randomly assigned 2287 patients with stable coronary disease to PCI plus optimal medical therapy or to optimal medical therapy alone.
方法：我们随机分配2287例稳定性冠心病患者接受PCI加优化药物治疗或者单用优化药物治疗。
The important thing to realize about COURAGE is that they enrolled a relatively low-risk patient population with very stable coronary disease after screening with coronary angiography.
但是有一个关键点要指出，COURAGE研究纳入的人群经冠状动脉造影证实为稳定性冠心病，总体人群风险偏低。
Background: The prognostic value of BNPs in low-risk patients with stable coronary artery disease remains unclear.
背景：BNP对稳定型冠心病低风险患者的预测价值尚不清楚。
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