648
Given alone to any accumbal subregion , GR 55562 ( 0 . 1 - 10 microg / side ) or CP 93129 ( 0 . 1 - 10 microg / side ) did not change basal locomotor activity .
 GR 55562, CP 93129
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 GR 55562, CP 93129