14791
The myeloid integrin CD11b is expressed selectively on the surface of mature macrophages , monocytes , neutrophils , and natural killer cells .
 natural killer cells, myeloid integrin CD11b, neutrophils, mature macrophages, monocytes
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 natural killer cells, myeloid integrin CD11b, neutrophils, mature macrophages, monocytes