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安徽医科大学:《流行病学》课程教学资源(PPT课件讲稿,第五版)Case-control studies

This version is made for bilingual teaching .Case-control study is an essential research design of Epidemiology, which involves identifying patients who have the outcome of interest (cases) and control patients who do not have that same outcome, and looking back to see if they had the exposure of interest. The exposure could be some environmental factor, a behavioural factor, or exposure to a drug or other therapeutic intervention.
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