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Figure 2. Hearing thresholds ( SEM) determined by measurement of the ABR. The hearing thresholds in the two groups of rats differed significantly (P < 0.05) only 12.8 kHz.

Figure 2. Hearing thresholds ( SEM) determined by measurement of the ABR. The hearing thresholds in the two groups of rats differed significantly (P < 0.05) only 12.8 kHz.