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Validity of the Self-administered Food Frequency Questionnaire Used in the 5-year Follow-up Survey for the JPHC Study to Assess Folate, Vitamin B(6) and B(12) Intake: Comparison with Dietary Records and Blood Level
To validate a self-administered food frequency questionnaire (FFQ) for the estimation of dietary intake of folate, vitamins B(6) and B(12), we compared measures of these vitamins by the FFQ and plasma concentrations among 87 male volunteers aged 40-69 years in the Japan Public Health Center-based pr...
Autores principales: | Iso, Hiroyasu, Moriyama, Yuri, Yoshino, Kaori, Sasaki, Satoshi, Ishihara, Junko, Tsugane, Shoichiro |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Japan Epidemiological Association
2007
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9767700/ https://www.ncbi.nlm.nih.gov/pubmed/12701636 http://dx.doi.org/10.2188/jea.13.1sup_98 |
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