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Ding Y, Li F, Hu P, Ye M, Xu F, Jiang W, Yang Y, Fu Y, Zhu Y, Lu X, Liu Y, Xie Z, Wang Z. Reproducibility and relative validity of a semi-quantitative food frequency questionnaire for the Chinese lactating mothers. Nutrition Journal. 2021 Mar 03;20(1):20. doi: 10.1186/s12937-021-00678-5. |