23672
The high levels of A alpha C adduct formed in liver , GI tract , and bladder of C57BL / 6 mice reinforce the notion that A alpha C may contribute to DNA damage and cancer of these organs in smokers .
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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:
 None