6727
We demonstrated AhR - dependent regulation of emerging and novel AhR target genes , such as Fst , Areg , Hbegf , Ctgf , Btg2 , and Foxq1 .
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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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