8057
These results validate a novel treatment strategy for ovarian cancer based on drug combinations of cytotoxic agents and molecular targeted agents , delivered concurrently by a nanoscale drug delivery system , e . g . PEG - b - PCL micelles .
 Chemical: PEG - b - PCL
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: PEG - b - PCL