Casecontrol study的用法和樣例：
例句
- Now, investigators have conducted a large population-based case-control study to evaluate the relation between PPI use and CAP.
現在，研究者進行一個大樣本的病例對照研究來評估兩者的相關性。 - The independent association between FL and angiographic CAD was assessed in this case?control study by considering the contribution of their shared risk factors.
通過病例對照研究，考慮脂肪肝和冠狀動脈疾病的共同的危險因素，研究兩種疾病之間是否存在獨立聯繫。
