Salt iodine content was measured bimonthly for 18 months and indicators of iodine deficiency were measured at baseline and 6, 9, 12 and 18 months thereafter. The X-ray was taken in every 2 months for 6 times.

  • 每2个月检测学生家中正在食用碘盐的碘含量;研究开始前及开始后6、9、12和18个月时对甲状腺大小、尿碘水平、身高、体重进行测量。

  • 互联网 2025-03-04 22:47:48

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