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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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ultracrystallite
ultradeep-field observation
ultra-deep well fracturing
ultradense neutron star
ultradense object
ultradifferentiable function
ultra diffuse galaxy
ultradistribution
ultradivisor
ultradyne
ultra-early weaning
ultra-elliptic
ultra-elliptic differential equation
ultra-elliptic equation
ultra-elliptic integral
ultrafactorial
ultrafast
ultrafast capillary electrophoresiss
ultrafast differential scanning calorimeter
ultrafast electron crystallography
ultrafast electron diffraction
ultra fast laser ablation
ultra-fast laser ablation
ultrafast laser ablation
ultrafast low energy electron diffraction
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