24971
With the help of FA , DOX / PEG - FA / SWNTs tend to selectively attach onto cancer cells and enter the lysosomes or endosomes by clathrin - mediated endocytosis .
 Chemical: DOX; Chemical: PEG
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: DOX; Chemical: PEG