26840
Prevention of Ly6C ( low ) monocyte development , crawling , or retention in Nr4a1 ( - / - ) , Itgal ( - / - ) , and Tlr7 ( host - / - BM + / + ) and Cx3cr1 ( - / - ) mice , respectively , abolished neutrophil recruitment and endothelial killing .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None