19073
Electron spin resonance spectrometry showed that OxLDL - induced superoxide ( O2 ( . - ) ) production in the MR fractions was substantially reduced by statins .
 Chemical: superoxide; Chemical: O2 ( . - ); Chemical: statins
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: superoxide; Chemical: O2 ( . - ); Chemical: statins