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Inhibition of P - gp and Bcrp by the dual inhibitor elacridar dramatically increased erlotinib delivery to the tumor core , rim , and normal brain .
 Chemical: elacridar; Chemical: erlotinib
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: elacridar; Chemical: erlotinib