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Individual unaided thresholds over the range 125 Hz to 8,000 Hz in the implanted ear shown preoperatively (A) and postoperatively at initial activation (B), 3 months (C), 6 months (D), and 12 months (E). Averaged thresholds with ±1 standard error bars (A–E) are shown with a dark black line. (F) Averaged unaided thresholds over time at 125 Hz, 250 Hz, and 500 Hz are shown. ANSI = American National Standards Institute.
