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Longitudinal assessment of air conduction audiograms in a phase III clinical trial of difluoromethylornithine and sulindac for prevention of sporadic colorectal adenomas .
 Chemical: difluoromethylornithine; Chemical: sulindac; Disease: colorectal adenomas
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: difluoromethylornithine; Chemical: sulindac; Disease: colorectal adenomas