17010
Due to their heterogeneity , they further can express a variety of lineage markers , which overlap with other myeloid cell types such as Gr1 , CD11b , MHCIIlo , Ly6C and Ly6G , making it difficult to identify them by surface phenotype alone .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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