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. 2021 Jul 26;8:680843. doi: 10.3389/fvets.2021.680843

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Copyright © 2021 Nagasawa, Ohta and Uchiyama.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Differences in urinary cortisol (A) and oxytocin (B) concentrations under social (SC) and non-social (NSC) conditions. Box plots show the interquartile range (IQR) for each condition, with whiskers extending to 1.5 × the IQR.