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The present work was undertaken to evaluate the protective effect of an aqueous extract of green tea ( GT , Camellia sinensis ) leaves against arsenic ( NaAsO2 ) - induced biochemical toxicity and lipid peroxidation production in experimental rats .
 Chemical: arsenic; Chemical: NaAsO2
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: arsenic; Chemical: NaAsO2