28193
The good correlation between estrogenic activity and ER binding affinity of the low - brominated OH - PBDEs strongly suggest that these compounds induce ER transcriptional activity by binding directly with ER .
 OH - PBDEs
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 OH - PBDEs