20506
Effects of chronic social defeat stress on behavior and choline acetyltransferase , 78 - kDa glucose - regulated protein , and CCAAT / enhancer - binding protein ( C / EBP ) homologous protein in adult mice .
 choline, glucose
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 choline, glucose