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汉源县是全国大骨节病活跃重病区,病区处于低硒环境。按照《四川省大骨节病监测方案》要求,于1990～1997年对该病区7～12岁儿童进行了8年病情及发硒的监测,现将监测报道如下。1 材料与方法1.1 监测对象 汉源县双溪乡大骨节病病区7～12岁儿童。1.2 监测时间 1990～1997年。1.3 监测指标 儿童X线阳性检出率及发硒含量。1.4 监测方法
Hanyuan County is a national active area of Kashin-Beck disease, ward in a low-selenium environment. In accordance with the requirements of Sichuan Kashin-Beck Disease Surveillance Program, surveillance of 8-year-old children and children aged 7 to 12 years with selenium was conducted from 1990 to 1997. The monitoring report is as follows. 1 Materials and Methods 1.1 monitoring object Hanyuan Shuangxi Township Kashin-Beck disease area of 7 to 12-year-old children. 1.2 monitoring time from 1990 to 1997. 1.3 monitoring indicators X-positive children detection rate and selenium content. 1.4 monitoring methods