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The mice ( 10 per sex for each dose ) was orally administered with neem oil with the doses of 0 ( to serve as a control ) , 177 , 533 and 1600 mg / kg / day for 90 days .
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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