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ABR thresholds before and after noise exposure in the third section. (A) Week 1 non-tinnitus/Week 3 non-tinnitus group; n=19. (B) Week 1 non-tinnitus/Week 3 tinnitus group; n=4. (C) Week 1 tinnitus/Week 3 non-tinnitus group; n=5. (D) Week 1 tinnitus/Week 3 tinnitus group; n=22. Data are presented as the mean ± SD, as determined by one-way ANOVA followed by Tukey's post-hoc test. *P<0.05 vs. Baseline ABR threshold. ABR, auditory brainstem response; SPL, sound pressure level.
