[Study on vitamin A nutrition status in plasma of different economic level of Chinese 3- 12-year-old children].
Wei sheng yan jiu = Journal of hygiene research（2009）
摘要
The result also indicates that the vitamin A level in plasma of 3-12y children is influent with the family economic level, and the result will provide the data to work out the strategy to improve the vitamin A nutrition status.
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关键词
vitamin,nutrition status,different economic level,year-old
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