26709
A total of 60 mice were randomly assigned to six experimental groups : control , model , dexamethasone ( 2 mg / kg ) , and BA ( 10 mg / kg , 20 mg / kg , 40 mg / kg ) .
 dexamethasone
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 dexamethasone