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ABR amplitude and latencies. (Top row). Average of I, III, and V ABR amplitude and latencies (ms) at 80 dB nHL for the young (gray) and middle-aged adult (black) groups. (Bottom row). Threshold intensity of ABR wave V amplitude and ratio I/V wave amplitude for the young (blue) and middle-aged adult (cyan) groups. Error bars represent standard error. Error bars represent the standard error.
