(Q46684160)
Statements
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Validity and reproducibility of a semi-quantitative food frequency questionnaire for use among pregnant women in rural China (English)
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Yue Cheng
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Hong Yan
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Michael John Dibley
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Yuan Shen
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Qiang Li
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Lingxia Zeng
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1 January 2008
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17
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1
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166-177
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