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Validity and reproducibility of folate and vitamin B(12 )intakes estimated from a self-administered diet history questionnaire in Japanese pregnant women
BACKGROUND: No validated dietary questionnaire for assessing folate and vitamin B(12 )intakes during pregnancy is available in Japan. We evaluated the validity and reproducibility of intakes of folate and vitamin B(12 )estimated from a self-administered diet history questionnaire (DHQ) in Japanese p...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3324379/ https://www.ncbi.nlm.nih.gov/pubmed/22420377 http://dx.doi.org/10.1186/1475-2891-11-15 |