A JavaScript package that can be included in webpages or programs and used for validating and converting unit expressions from the Unified Code for Units of Measure (UCUM).

A web API service for validating and converting unit expressions from the Unified Code for Units of Measure (UCUM). http://unitsofmeasure.org/trac

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, including electronic health records.

An automated analytical system for producing organized views of the transcriptome from a growing number of organisms. UniGene was retired in July 2019; however, you will continue to be able to access archived data.

UniVec and UniVec_Core databases in FASTA format.

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®, RxNorm, LOINC® and others), that define clinical concepts to support effective and interoperable health information exchange. The VSAC does not create value set content. The VSAC also provides downloadable access to all official versions of value sets specified by the Centers for Medicare & Medicaid Services (CMS) electronic Clinical Quality Measures (eCQMs). For information on CMS eCQMs, visit the eCQI Resource Center. The VSAC is provided by the National Library of Medicine (NLM), in collaboration with the Office of the National Coordinator for Health Information Technology (ONC) and CMS.

Quickly identifying segments of a nucleic acid sequence that may be of vector origin.

A computer algorithm that identifies similar protein 3-dimensional structures. Structure neighbors for every structure in MMDB are pre-computed and accessible via links on the MMDB Structure Summary pages.

This resource provides viral genome sequence data and related information.

This tool helps identify the genotype of a viral sequence.