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BACKGROUND AND AIM : Interferon and ribavirin combination therapy for chronic hepatitis C produces hemolytic anemia .
 Chemical: Interferon; Chemical: ribavirin; Disease: chronic hepatitis C; Disease: hemolytic anemia
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:
 Chemical: Interferon; Chemical: ribavirin; Disease: chronic hepatitis C; Disease: hemolytic anemia