14791
The myeloid integrin CD11b is expressed selectively on the surface of mature macrophages , monocytes , neutrophils , and natural killer cells .
 ( cell type: natural killer cells, None) , ( protein: myeloid integrin CD11b, None) , ( cell type: neutrophils, None) , ( cell type: mature macrophages, None) , ( cell type: monocytes, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( cell type: natural killer cells, None) , ( protein: myeloid integrin CD11b, None) , ( cell type: neutrophils, None) , ( cell type: mature macrophages, None) , ( cell type: monocytes, None) 