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UMLS::Interface provides a Perl interface to the Unified Medical Language System (UMLS). The UMLS is a knowledge representation framework encoded designed to support broad scope biomedical research queries. There exists three major sources in the UMLS. The Metathesaurus which is a taxonomy of medical concepts, the Semantic Network which categorizes concepts in the Metathesaurus, and the SPECIALIST Lexicon which contains a list of biomedical and general English terms used in the biomedical domain. The UMLS-Interface package is set up to access the Metathesaurus and the Semantic Network present in a mysql database.

If you use UMLS::Interface, please cite the following paper:


  • Download the current version (v0.41): CPAN
  • Mailing List

  • Join our mailing list designed to support users of UMLS::Interface (as well as UMLS::Similarity).
  • Documentation

  • The UMLS::Interface contains extensive documentation.
  • Publications

  • UMLS-Interface and UMLS-Similarity : Open Source Software for Measuring Paths and Semantic Similarity. Bridget T. McInnes, Ted Pedersen and Serguei V. Pakhomov. In the Proceedings of the Annual Symposium of the American Medical Informatics Association, Nov 14-18, 2009, San Francisco, CA