9447
In this study , we demonstrated that an initial infiltration of Ly6C ( + ) Ly6G ( - ) immature monocyte fraction exhibited the same characteristics as myeloid - derived suppressor cells ( MDSCs ) , and played a critical role in the resolution of acute inflammation and in the subsequent tissue repair by using mice spinal cord injury ( SCI ) model .
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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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