26928
We observed that the administration of ICI at 08 : 00h on proestrus day produced a 15 % inhibition of luminal epithelial cell proliferation , reduced uterine wet weight by 21 % and caused reduction of Akt phosphorylation at Ser 473 as compared to vehicle - treated animals , whereas ICI treatment at 00 : 00h on estrus day had no effect on these parameters .
 Chemical: ICI; Chemical: Ser; Chemical: ICI
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: ICI; Chemical: Ser; Chemical: ICI