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The current study investigated the regulation of hepatic and renal Bcrp mRNA and protein in mice treated with the PPAR alpha agonist perfluorooctanoic acid ( PFOA ) and the ability of PFOA to alter human BCRP function in vitro .
 Chemical: perfluorooctanoic acid; Chemical: PFOA; Chemical: PFOA
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: perfluorooctanoic acid; Chemical: PFOA; Chemical: PFOA