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epidemiological experimental study
释义
epidemiological experimental study
Encyclopedia
医学
流行病学实验研究
释
epidemiological experimental study
流行病学实验研究
将研究人群(病人或正常人)随机分为实验组和对照组,研究者对实验组人群施加或除去某种干预措施后,随访观察一段时间并比较两组人群疾病或健康状态的改变,对比分析实验组与对照组之间结局的差别,以验证研究假设和考核干预措施效果的一种实验方法。又称实验流行病学、干预研究等。
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primary body
primary bronchopulonary carcinoma
primary bronchus
primary cell
primary cell culture
primary cells control
primary cell wall
primary cementing
primary central nervous system lymphoma
primary cerebral vesicle
primary ciliary dyskinesia
primary circle
primary clock
primary coelom
primary cohomology operation
primary coil
primary coking coal
primary color
primary combined immunodeficiency,PCID
primary component
primary console
primary consolidation
primary constant
primary constriction
primary coolant system
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