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Effects of sound exposure on ABR thresholds for 12 experimental mice. (A) Mean ABR thresholds at five frequencies (10, 16, 20, 24, and 32 kHz) recorded before (open bars) and immediately after sound exposure (black bars). (B & C) Mean ABR thresholds recorded at 56, 84, and 360 days after exposure, respectively. Black and grey bars were and were not, respectively, significantly different from pre-sound exposure responses. *p < 0.05, **p < 0.001.
