8695
Post marketing studies of Interferon - beta ( IFN beta ) therapy in multiple sclerosis ( MS ) have demonstrated surprisingly high rates of hepatotoxicity .
 hepatotoxicity, IFN beta; hepatotoxicity, Interferon - beta
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 hepatotoxicity, IFN beta; hepatotoxicity, Interferon - beta