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. 2021 Feb 19;11:4225. doi: 10.1038/s41598-021-83379-7

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Scatter plot representing correlations between vitamin B12 and cognitive scores in the WPPSI-III group. (a) Correlations between vitamin B12 < 209 pg/mL (L group of 25th percentile threshold; 6 subjects) and WPPSI-III subtests scores. (b) Correlations between vitamin B12 < 327 pg/mL (L group of 50th percentile threshold; 13 subjects) and WPPSI-III subtests scores. (c) Correlations between vitamin B12 < 442 pg/mL (L group of 75th percentile threshold; 20 subjects) and WPPSI-III subtests scores (see Supplementary Table S3). Each dot represents a sample subject. Each line represents a correlation analyzed.