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. Author manuscript; available in PMC: 2011 Nov 1.
Published in final edited form as: Ear Hear. 2011 May-Jun;32(3):391–398. doi: 10.1097/AUD.0b013e318202b620

Figure 1.

Figure 1

Average pure-tone audiometric thresholds as a function of frequency. Error bars show ±1 standard deviation; shaded area shows range of values. Gray lines show individual audiograms of the three lowest and highest four-frequency average thresholds. Hearing losses varied from sloping normal-to-mild to flat moderate to severe-to-profound