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Figure 2 The cohort’s average DPOAE level and noise floor as a function of f2 frequency. The shaded areas represent ±1 standard deviation. DPOAE, distortion product otoacoustic emission.

Figure 2 The cohort’s average DPOAE level and noise floor as a function of f<sub>2</sub> frequency. The shaded areas represent ±1 standard deviation. DPOAE, distortion product otoacoustic emission.