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. 2017 Feb 13;9(2):128. doi: 10.3390/nu9020128

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Correlations between folate intake assessed by the F-FFQ and the average of 24 h recalls in: (a) total sample (n = 503); and (b) validation subsample (n = 50); and folate intake assessed by the FFQ and: (c) folate serum concentration; and (d) red blood cells (RBC) folate concentration among Serbian women of reproductive age. All correlations were significant: (a) r = 0.56, p < 0.001; (b) r = 0.57, p < 0.001; (c) r_ser = 0.28, p < 0.01; and (d) r_rbc = 0.37, p < 0.01.