Reproducibility and validity of the food frequency questionnaire for estimating habitual dietary intake in children and adolescents

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Tomomi Kobayashi^*, Miharu Kamimura, Shino Imai, Chihiro Toji, Naoko Okamoto, Mitsuru Fukui and Chigusa Date

Nutrition Journal 2011, 10:27 doi:10.1186/1475-2891-10-27