论文部分内容阅读
1987年9月我们在云南省景洪县勐罕区曼听乡曼听、曼炸、曼嘎3个村对561人运用整群随机抽样和多种检查方法,比较全面地调查了该地傣族居民寄生虫感染状况。 1 调查方法依照全国人体寄生虫分布调查实施细则中规定的不等比例分层随机抽样法抽查。按
In September 1987, we used cluster random sampling and multiple inspection methods in 561 people in Manzheng Township, Menghan District, Menghan District, Yunnan Province, to investigate the prevalence of Dai Resident parasitic infections. 1 survey method in accordance with the national survey of the distribution of human parasites in accordance with the provisions of unequal proportion stratified random sampling method. press