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Patients were monitored for 23 + / - 4 hours before 5 - FU infusion , and 98 + / - 9 hours during 5 - FU infusion .
 Chemical: 5 - FU; Chemical: 5 - FU
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: 5 - FU; Chemical: 5 - FU