1735
A phase II clinical trial on MDS was conducted in a cooperative study with orally administrable ara - C analogue , PLAC , which is resistant to cytidine deaminase and had shown an anti - tumor activity on various experimental tumors by oral route .
 GENE: cytidine deaminase
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: cytidine deaminase