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In conclusion , these results suggested that the supplementation of diet with epicatechin and vitamin E provided antioxidant defense with strong chemopreventive activity against nicotine - induced carcinogenesis .
 Chemical: epicatechin; Chemical: vitamin E; Chemical: nicotine
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: epicatechin; Chemical: vitamin E; Chemical: nicotine