北京房山区农民1991~1999年膳食营养水平的变化

CHINESE JOURNAL OF PREVENTIVE MEDICINE(2004)

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Abstract
在1991~1999年间我们对北京市房山区农民进行了3次膳食调查,对营养素摄入水平进行分析比较,并阐述其变化趋势.
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