"Drainage" 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 removal of fluids or discharges from the body, such as from a wound, sore, or cavity.

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This graph shows the total number of publications written about "Drainage" by people in this website by year, and whether "Drainage" was a major or minor topic of these publications.
Bar chart showing 102 publications over 25 distinct years, with a maximum of 8 publications in 2010
To see the data from this visualization as text, click here.