2205
Twenty eligible patients with cirrhosis were randomized into two groups : 10 patients treated with 6 million units of natural IFN - beta twice a week for 36 months and 10 patients without IFN therapy .
 GENE: IFN - beta; GENE: IFN
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: IFN - beta; GENE: IFN