3539
As a quantitative index of cochlear function , 2f1 - f2 distortion - product otoacoustic emissions ( DPOAEs ) were monitored systematically over time in three groups of rabbits , with each group experiencing a unique paradigm that incorporated repeated exposure to the low - frequency tone .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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