point-prevalence survey 现患率调查
point prevalence survey 时点患病率
epidemiological prevalence survey 流行病学调查
prevalence typical survey 现况典型调查
a survey of prevalence 患病率调查
a survey of diabetes prevalence 糖尿病患病率调查
Methods Prevalence survey was adminstered to country dwellers in Suzhou area of Anhui province,through stratified random cluster sampling.
方法 采用分层随机整群抽样方法对安徽省宿州地区农村居民进行银屑病现况调查。
参考来源 - 安徽省宿州地区农村居民银屑病流行病学调查·2,447,543篇论文数据，部分数据来源于NoteExpress
Method: We had made a prevalence survey through a questionnaire.
方法：采用自填问卷进行现况调查。
Methods Prevalence survey and case-control study on risk factors was conducted.
方法采用现况调查和危险因素病例对照研究法进行研究。
Methods Stratified cluster random sampling was carried out in prevalence survey and questionnaires was applied.
方法采取分层整群随机抽样方法进行问卷调查。
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