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１９９７年对４４２名８－１０岁儿童的随意一次尿样和其家中盐样进行含碘量测定，结果报告如下。１材料和方法１．１材料来源随机抽取全区３县１市４４２名８－１０岁在校学生，男、女各半。采集学生的随意一次尿样和该生家盐样。共采集盐样和尿样各４４２份。１．２碘盐...
In 1997 442 children 8-10 year-old random urine samples and their home salt samples for iodine determination, the results are reported as follows. 1 Materials and methods 1.1 Source of material randomly selected 442 district 3 cities and one city 8-10-year-old students, male and female half. Collect the student’s random urine sample and the student’s salt sample. A total of 442 samples of salt and urine samples were collected. 1.2 iodized salt ...