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To investigate the protective effect of enzymatically modified isoquercitrin ( EMIQ ) on the hepatocarcinogenic process , we used a two - stage hepatocarcinogenesis model in N - diethylnitrosamine - initiated and thioacetamide ( TAA ) - promoted rats .
 Chemical: isoquercitrin; Chemical: N - diethylnitrosamine; Chemical: thioacetamide; Chemical: TAA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: isoquercitrin; Chemical: N - diethylnitrosamine; Chemical: thioacetamide; Chemical: TAA