13196
We further examined the signaling pathway by which osteoblasts survive ATO treatment , and found that they were arrested at G2 / M phase of the cell cycle at 30h and overrode the G2 / M boundary at 48h .
 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