27536
We showed that acute CCl4 - induced damage was accompanied by a rise in Bax / Bcl2 ratio indicating apoptosis .
 Chemical: CCl4
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: CCl4 
Answer:
 Chemical: CCl4