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The results obtained demonstrated that the antiproliferative capacity of Epo A and Epo B in SKOV - 3 cell line ( measured as IC ( 50 ) after 72 h continuous treatment ) was six and five times greater than that of PTX ' s respectively .
 Chemical: Epo A; Chemical: Epo B; Chemical: PTX
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: Epo A; Chemical: Epo B; Chemical: PTX