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A: The comparison of the average sizes of the central lesions between the 3-NP-treated ears and the ears without the 3-NP treatment following exposure to the impulse noise. B: The comparison of the numbers of apoptotic and necrotic nuclei in the center of the cochlear lesion between the 3-NP-treated and the perilymph-treated control cochleae. There is no significant increase in the number of necrotic cells after the 3-NP treatment (p>0.05).
