22857
Poly - lactide - co - glycolide ( PLGA ) microparticles emerged as one of the most promising strategies to achieve site - specific drug delivery .
 Chemical: Poly - lactide - co - glycolide; Chemical: PLGA
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: Poly - lactide - co - glycolide; Chemical: PLGA