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FM 50-kHz calling response to amphetamine two-injection protocol of sensitization in non-categorized study cohort. Two-way ANOVA—day effect: F 1, 21 = 0.16, p = 0.70; post-drug session time effect: F 9, 189 = 7.24, p < 0.001; day × post-drug session time interaction effect: F 9, 189 = 3.20, p = 0.001
