24174
This study was designed to investigate whether ATO could induce apoptosis of cardiac fibroblasts ( CFs ) that play very important roles in maintaining the structure integrity and function of the heart .
 Chemical: ATO
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: ATO