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Air

"Air" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

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The mixture of gases present in the earth's atmosphere consisting of oxygen, nitrogen, carbon dioxide, and small amounts of other gases.


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This graph shows the total number of publications written about "Air" by people in this website by year, and whether "Air" was a major or minor topic of these publications.
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