Unified Medical Language System® (UMLS®)
- 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.
Many other institutions and individuals are applying the UMLS Knowledge Sources and lexical programs. Here are a few examples.
- National Guidelines Clearinghouse, an AHRQ initiative, is a public resource for evidence-based clinical practice guidelines.
- National Quality Measures Clearinghouse, sponsored by AHRQ, is a public repository for evidence-based quality measures and measure sets.
- NCI Thesaurus and Enterprise Vocabulary Services includes reference terminology and related vocabulary resources to help researchers, clinicians, and administrators identify types of cancer, treatments, and other cancer related topics.