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Public Service Announcements as Topic

"Public Service Announcements as Topic" 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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Works on announcements for which no charge is made and which promote programs, activities, or services of federal, state, or local governments or those of non-profit organizations and other announcements regarded as serving community interests.


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