22682
The uterine cavity ratio was decreased by aroclor ( p < 0 . 01 ) , PCB 180 and mirex ( p < 0 . 05 ) .
 PCB 180, mirex
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 PCB 180, mirex