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We compared herewith a variety of end - points related to oxidative stress , mitochondrial alterations , and cell turnover in the lung of Swiss H mice , either sham - exposed or CS - exposed for 4 weeks , starting either at birth or at 4 months of age .
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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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