26065
In the present study , hepatic biotransformation pathways and DNA adduct formation were studied in primary rat hepatocytes , incubated with AA ( 0 . 2 - 2 , 000 mu M ) for up to 24 h .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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