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. 2022 Feb 10;12:2318. doi: 10.1038/s41598-022-06354-w

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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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Association between the count of (a) social play episodes, and (b) social nosing behaviors given at 21 days and 42 days of age. Pearson’s correlation tests were performed on variable residuals obtained from a mixed linear model including the fixed effects of pen and batch. The black line represents the regression line and the grey area represents the 95% confidence interval.