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. 2021 Jun 30;22(13):7088. doi: 10.3390/ijms22137088

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© 2021 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 (https://creativecommons.org/licenses/by/4.0/).

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22-kHz USV prevalence. Effects of SERT deficiency on the prevalence of 22-kHz emission (yes—checkered bar; no—transparent bar) during acquisition (A,A’), extinction (B,B’), and recovery (C,C’). Prevalence of 22-kHz USV is shown for SERT^+/+, SERT^+/−, and SERT^−/− rats with sexes pooled (A,B,C) and separated by sex (A’,B’,C’), with females on the left and males on the right side of the panel. N = 44 female rats (15 +/+, 15 +/−, 14 −/−), N = 43 male rats (14 +/+, 15 +/−, 14 −/−). Data are presented as mean ± SEM. G* p < 0.05 effect of genotype, S* p < 0.05 effect of sex.