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We found that , when the interceptor proteins were combined at doses that were only modestly protective in isolation ( enzyme , 1mg / kg ; antibody , 8mg / kg ) , they provided complete protection of liver tissue and motor function .
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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