24879
FXO feeding to PbAc - treated rats markedly enhanced resistance to PbAc - elicited deleterious effects .
 Chemical: PbAc; Chemical: PbAc
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: PbAc; Chemical: PbAc