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。