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"Half-Life" 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.

MeSH information
The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacologic, physiologic, or radiologic activity.

This graph shows the total number of publications written about "Half-Life" by people in the URMC Research Network by year, and whether "Half-Life" was a major or minor topic of these publication.