6120
The purpose of this paper is to discuss ethanol ' s neuroprotective properties in stroke when consumed as a preconditioning agent , in TBI with a positive blood alcohol content , and finally in stroke treatment , with the goal of using post - ischemia ethanol ( PIE ) therapy to ameliorate brain damage in the future .
 ethanol, ethanol
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 ethanol, ethanol