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Unified Medical Language System® (UMLS®)

UMLS Applications

NLM Applications

  • PubMed® offers free access to MEDLINE® (with links to participating on-line journals), and other related databases.
  • Medical terms can be difficult to remember, and often there are many names for a single concept (e.g., cancer of the colon, colonic neoplasm, colon cancer, etc.). Thus, ClinicalTrials.gov uses the UMLS to automatically add words related to those that searchers enter.
  • NLM Indexing Initiative uses the UMLS as a major component in investigating automated indexing methods.

Other Applications

Many other institutions and individuals are applying the UMLS Knowledge Sources and lexical programs. Here are a few examples.