29882
Adult male Sprague - Dawley rats were classified into Group 1 ( n = 10 ) : normal healthy animals serving as the negative control group ; Group 2 ( n = 60 ) : the AD - induced group .
 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