23254
Two groups of GBS could be distinguished : a low - CORT group that displayed GR binding across the full range of CORT concentrations , and a second high - CORT group that displayed significant GR binding only after administering the highest concentration of CORT .
 CORT, CORT, CORT, CORT
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 CORT, CORT, CORT, CORT