the survey of epidemiology 流行病学调查
sampling survey of epidemiology 流行病抽样调查
survey of serological epidemiology 血清流行病学调查
We suggest that the survey of epidemiology should be made in natural population.
强调流行病学调查应在自然人群中进行。
Objective To survey and analyse the characteristics and some trends of clinical epidemiology in all the patients with knee meniscus injury by using arthroscopic surgery recently.
目的调查分析近期关节镜下手术治疗膝半月板损伤病例的临床流行病学特点及其变化趋势。
Methods HIV serology surveillance data of high risk crowds, epidemiology survey data and clinic data of AIDS patients was analyzed.
方法分析全省的重点人群HIV血清学监测资料，流行病学调查资料及艾滋病病人临床资料。
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