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In this study , we developed oral in situ gelling formulations composed of pluronic ( Plu ) and polyacrylic acid ( PAA ) for the delivery of an anticancer drug , epirubicin ( Epi ) .
 Chemical: pluronic; Chemical: Plu; Chemical: polyacrylic acid; Chemical: PAA; Chemical: epirubicin; Chemical: Epi
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: pluronic; Chemical: Plu; Chemical: polyacrylic acid; Chemical: PAA; Chemical: epirubicin; Chemical: Epi