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Medical Subject Headings (MeSH) is a hierarchically-organized terminology for indexing and cataloging of biomedical information. It is used for the indexing of PubMed and other NLM databases. Please see the Terms and…
Updated Oct 29, 2026
HealthData.Gov
BLAST (Basic Local Alignment Search Tool) finds regions of similarity between biological sequences. BLAST includes several specialized search interfaces: SmartBLAST, Primer-BLAST, Global Align, CD-Search, IgBLAST,…
Updated Oct 29, 2026
HealthData.Gov
Gene integrates information from a wide range of species. A record may include nomenclature, Reference Sequences (RefSeqs), maps, pathways, variations, phenotypes, and links to genome-, phenotype-, and locus-specific…
Updated Oct 29, 2026
HealthData.Gov
Provides patients, family members, health care professionals, and members of the public easy access to information on clinical trials for a wide range of diseases and conditions.
Updated Oct 29, 2026
HealthData.Gov
Clinical Table Search Service (formerly "lforms-service") is a web service which software programs can use for querying clinical data tables.
Updated Oct 29, 2026
HealthData.Gov
The Global Unique Device Identification Database (GUDID) contains key device identification information submitted to the FDA about medical devices that have Unique Device Identifiers (UDI).
Updated Oct 29, 2026
HealthData.Gov
PubMed comprises more than 26 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web…
Updated Oct 29, 2026
HealthData.Gov
DailyMed provides health information providers and the public with a standard, comprehensive, up-to-date, look-up and download resource of medication content and labeling as found in medication package inserts, also…
Updated Oct 29, 2026
HealthData.Gov
E-utilities (Entrez Programming Utilities) are a set of eight server-side programs that provide a stable interface into the Entrez query and database system at the National Center for Biotechnology Information (NCBI).
Updated Oct 29, 2026
HealthData.Gov
RxTerms is a drug interface terminology derived from RxNorm for prescription writing or medication history recording (e.g. in e-prescribing systems, PHRs). RxTerms is derived only from the non-proprietary content of…
Updated Oct 29, 2026
HealthData.Gov
The UMLS integrates and distributes key terminology, classification and coding standards, and associated resources to promote creation of more effective and interoperable biomedical information systems and services,…
Updated Oct 29, 2026
HealthData.Gov
PubMed is a free resource supporting the search and retrieval of biomedical and life sciences literature with the aim of improving health–both globally and personally. The PubMed database contains citations and…
Updated Oct 29, 2026
HealthData.Gov
An interface for building applications that allows users to combine functions of various NLM drug APIs, including the RxNorm, RxClass, RxTerms, and NDF-RT APIs. Sequences of functions can be executed interactively or in…
Updated Oct 29, 2026
HealthData.Gov
The Protein database is a collection of sequences from several sources, including translations from annotated coding regions in GenBank, RefSeq and TPA, as well as records from SwissProt, PIR, PRF, and PDB. Protein…
Updated Oct 29, 2026
HealthData.Gov
Comprehensive, authoritative, and timely compendium of human genes and genetic phenotypes.
Updated Oct 29, 2026
HealthData.Gov
PubChem contains the chemical structures of small organic molecules and information on their biological activities. PubChem includes substance information, compound structures, and bioactivity data in three primary…
Updated Oct 29, 2026
HealthData.Gov
The VSAC is a repository and authoring tool for public value sets created by external programs. Value sets are lists of codes and corresponding terms, from NLM-hosted standard clinical vocabularies (such as SNOMED CT®,…
Updated Oct 29, 2026
HealthData.Gov
Not all articles in PMC are available for text mining and other reuse, many have copyright protection, however articles in the PMC Open Access Subset are made available for download under a Creative Commons or similar…
Updated Oct 29, 2026
HealthData.Gov
An interactive Web application that enables users to visualize multiple alignments created by database search results or other software applications. The MSA Viewer allows users to upload an alignment and set a master…
Updated Oct 29, 2026
HealthData.Gov
PUG provides access to PubChem services via a programmatic interface. Users may download data, initiate chemical structure searches, standardize chemical structures and interact with E-utilities. Access PUG with…
Updated Oct 29, 2026