14034
We aimed at identifying novel genetic markers that would improve prediction of irinotecan toxicity and response in advanced colorectal cancer patients treated with folic acid ( leucovorin ) , fluorouracil ( 5 - FU ) , and irinotecan ( camptosar ) - based regimens .
 Chemical: irinotecan; Chemical: folic acid; Chemical: leucovorin; Chemical: fluorouracil; Chemical: 5 - FU; Chemical: irinotecan; Chemical: camptosar
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: irinotecan; Chemical: folic acid; Chemical: leucovorin; Chemical: fluorouracil; Chemical: 5 - FU; Chemical: irinotecan; Chemical: camptosar