3184
Adult rat urothelial cells were transformed in vitro following treatment with a single dose of N - methyl - N - nitrosourea ( MNU ) or MNU treatment followed by promotion with sodium saccharin .
 Anatomy: urothelial cells
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: urothelial cells