8803
To address this issue , we compared estradiol ( E ( 2 ) ) and CE alone on proliferation and apoptosis in MCF - 7 breast cancer cells .
 Chemical: estradiol
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: estradiol