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Right ear of a 64 month-old male with Down syndrome and normal hearing (10–15 dB HL across frequencies) and normal DPOAE. Top left: Tympanometric absorbance (downswept pressure). Top right: Tympanometric GD. Bottom left: Average low-frequency tympanometry. Bottom middle: Average high-frequency tympanometry. Bottom right: Absorbance by frequency plots (at ambient, TPP, and the positive and negative tympanogram tails.)
