14702
Additionally , while classic markers of inflammation ( cellular infiltration , total protein , neutrophils ) were not affected , there were changes in pulmonary macrophages populations , including significant decreases in macrophages expressing markers of activation in WS - exposed mice .
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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:
 None