"Occult Blood" 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.
Chemical, spectroscopic, or microscopic detection of extremely small amounts of blood.
This graph shows the total number of publications written about "Occult Blood" by people in this website by year, and whether "Occult Blood" was a major or minor topic of these publications.
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