15016
The Pb - elicited ROS levels and cytotoxicity were further enhanced by introducing small interfering RNA specific for APE1 ( siAPE1 ) .
 Chemical: Pb
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: Pb