7473
Protective effect of 70 % ethanolic extract of Lindera obtusiloba Blume on tert - butyl hydroperoxide - induced oxidative hepatotoxicity in rats .
 Chemical: tert - butyl hydroperoxide
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: tert - butyl hydroperoxide