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20 0 0年对武汉市城郊区开展儿童ＶｉｔＡ缺乏情况进行了调查。现报告如下。方法和结果采取分层 整群随机抽取 3个城区、4个郊区 ,各区抽取1～ 2条街道的儿童作为研究对象 ,采集末梢血 ,送实验室用微量荧光法检测 ,并对其母亲进行问卷调查。诊断标准采用血清ＶｉｔＡ测定值 2
A survey of children with VitA deficiency in suburban Wuhan was conducted in 2000. The report is as follows. Methods and Results A stratified cluster was randomly selected from 3 urban areas and 4 suburbs and children from 1 to 2 streets in each district were taken as research objects. Peripheral blood was collected and sent to laboratories for detection by micro-fluorescence and questionnaire for their mothers survey. Diagnostic criteria using serum VitA determination of 2