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"Hematemesis" 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
Vomiting of blood that is either fresh bright red, or older "coffee-ground" in character. It generally indicates bleeding of the UPPER GASTROINTESTINAL TRACT.

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