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Figure 1: Shift of ABR threshold caused by noise exposure. (a–e) Typical ABR plots presented in the control group, experimental group before noise exposure, 1-, 4-, and 14-d post-exposure groups (blue curve: left ear; red curve: right ear.) (f) Average of ABR threshold was calculated and shift of these values was analyzed by one-way ANOVA. *P < 0.01, values compared with control group; NP < 0.01, values compared among experimental groups

Figure 1: Shift of ABR threshold caused by noise exposure. (a–e) Typical ABR plots presented in the control group, experimental group before noise exposure, 1-, 4-, and 14-d post-exposure groups (blue curve: left ear; red curve: right ear.) (f) Average of ABR threshold was calculated and shift of these values was analyzed by one-way ANOVA. <sup>*</sup><i>P</i> < 0.01, values compared with control group; <sup>N</sup><i>P</i> < 0.01, values compared among experimental groups