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The potential of A alpha C to induce DNA adduct formation in liver , organs of the GI tract , lung , and urinary bladder , which are target organs of cancer in smokers , was examined using the C57BL / 6 mouse as an animal model .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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