15809
The c ( RGDfK ) on the surface of the micelle was confirmed by ( 1 ) H NMR analysis and cell affinity with human glioblastoma - astrocytoma cells ( U87MG ) .
 Chemical: ( 1 ) H
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: ( 1 ) H