17853
Prenatal bisphenol a exposure alters sex - specific estrogen receptor expression in the neonatal rat hypothalamus and amygdala .
 Chemical: bisphenol a; Chemical: estrogen
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: bisphenol a; Chemical: estrogen