Study,Epidemiological

《英文msh詞典》Study,Epidemiological
[入口詞] Study,Epidemiological
[主題詞] Epidemiologic Studies
[英文釋義] Studies designed to examine associations,commonly,hypothesized causal relations. They are usually concerned with identifying or measuring the effects of risk factors or exposures. The common types of analytic study are CASE-CONTROL STUDIES; COHORT STUDIES; and CROSS-SECTIONAL STUDIES.