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BACKGROUND : Hemolytic anemia is one of the major adverse events of the combination therapy of interferon and ribavirin .
 Disease: Hemolytic anemia; Chemical: interferon; Chemical: ribavirin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: Hemolytic anemia; Chemical: interferon; Chemical: ribavirin