8290
Pharmacogenomics of gemcitabine metabolism : functional analysis of genetic variants in cytidine deaminase and deoxycytidine kinase .
 gemcitabine, cytidine, deoxycytidine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 gemcitabine, cytidine, deoxycytidine