431
Inbred DBA / 2 and C57BL / 6 female mice were injected with CY , and the effect of the drug on the bladder was assessed during 100 days by light microscopy using different staining procedures , and after 30 days by conventional electron microscopy .
 Chemical: CY
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: CY