20514
A decrease in the Chat level at days 12 and 27 was noted in the prefrontal cortex ( PFC ) , amygdala ( Amyg ) , and dorsal hippocampus ( HIP ) in defeated mice .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None