单词：case-control study
case-control study的用法和样例：
例句
- The independent association between FL and angiographic CAD was assessed in this case?control study by considering the contribution of their shared risk factors.通过病例对照研究，考虑脂肪肝和冠状动脉疾病的共同的危险因素，研究两种疾病之间是否存在独立联系。
- Now, investigators have conducted a large population-based case-control study to evaluate the relation between PPI use and CAP.现在，研究者进行一个大样本的病例对照研究来评估两者的相关性。
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