Methods The cohort study was used.
方法 采用队列研究的方法。
参考来源 - 直接PCI与溶栓治疗急性心肌梗死的疗效分析·2,447,543篇论文数据,部分数据来源于NoteExpress
同义词: age group age bracket
以上来源于: WordNet
N-COUNT A person's cohorts are their friends, supporters, or associates. 朋友; 支持者; 助手 [usu poss N] [表不满]
Drake and his cohorts were not pleased with my appointment.
德雷克和他的朋友们对我的任命不满。
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