10308
DOX - loaded PLA - V6K2 NPs showed higher toxicity to 4T1 cells and the DNA damage response , and apoptosis was delayed compared to the free DOX .
 Chemical: DOX; Chemical: PLA; Chemical: DOX
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: DOX, PLA, DOX 
Answer:
 Chemical: DOX; Chemical: PLA; Chemical: DOX