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"Pica" 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.

expand / collapse MeSH information
The persistent eating of nonnutritive substances for a period of at least one month. (DSM-IV)

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This graph shows the total number of publications written about "Pica" by people in Harvard Catalyst Profiles by year, and whether "Pica" was a major or minor topic of these publication.
Bar chart showing 14 publications over 12 distinct years, with a maximum of 3 publications in 2014
To see the data from this visualization as text, click here.