7054
This select interaction , coupled with the transient gene expression profile of PEI , makes the PEI - ephrinB2 GAM an ideal candidate matrix for a bone targeted GAM .
 Chemical: PEI; Chemical: PEI
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: PEI; Chemical: PEI