21044
We used a split - body method to compare two different BTX - As in the rat . Results : Based on the changes in the CMAP , the two different BTX - As induced paralytic effect on the rat tibialis anterior muscle .
 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