case control study cohort study的相關公司資訊
cohort, cross sectional, and case-control studies - Emergency ...

cohort, cross sectional, and case-control studies - Emergency ...

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日期:2026-04-20
Emerg Med J 2003;20:54–60. Cohort, cross sectional, and case-control studies are collectively referred to as observational studies. Often these studies are the ......看更多