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There was no significant difference in the proportion of subjects in the DFMO plus sulindac group who experienced clinically significant hearing loss compared with the placebo group .
 Chemical: DFMO; Chemical: sulindac; Disease: hearing loss
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: DFMO; Chemical: sulindac; Disease: hearing loss