24098
Compounds 2 , 3 and 4 were able to induce apoptosis on leukemia cells , which was corroborated by phosphatidyserine externalization and activation of caspases - 3 and - 7 after 24h exposure .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None