• AIM: to set up statistical methods for calculation of intensity of schistosome infection in residents in nationwide sampling survey of schistosomiasis.

    目的全国血吸虫抽样调查居民血吸虫感染总体参数建立统计学方法

    youdao

  • Methods Complying with the united plan of medical survey nationwide, we combined sampling survey in various layers with general survey and typical survey.

    方法遵照全国医疗照射调查统一方案,采用分层抽样调查、普查典型调查相结合

    youdao

  • Methods Complying with the united plan of medical survey nationwide, we combined sampling survey in various layers with general survey and typical survey.

    方法遵照全国医疗照射调查统一方案,采用分层抽样调查、普查典型调查相结合

    youdao

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