2328
We also found decreased immobility in mice lacking the CB ( 1 ) receptor in glutamatergic cortical neurons , but not in forebrain GABAergic neurons , as compared with wild - type controls .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None