18125
Average RDX concentrations in tissues of exposed mice ranged from 11 . 1 ng / mL to 182 ng / mL , 25 . 6 ng / g to 3319 ng / g , 123 ng / g to 233 ng / g , 144 ng / g to 35 900 ng / g , and 51 . 1 ng / g to 2697 ng / g in the plasma , brain , liver , stomach , and intestine , respectively .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None