HubMed is an alternative, third-party interface to PubMed
PubMed is a free database accessing primarily the MEDLINE database of references and abstracts on life sciences and biomedical topics. The United States National Library of Medicine at the National Institutes of Health maintains the database as part of the Entrez information retrieval system...

, the database of biomedical literature produced by the National Library of Medicine
NLM may stand for:* National Liberation Movement* NetWare Loadable Module, an add-in that can be downloaded with a network protocol* Network Lock Manager, a computer communications protocol used with the NFS...

. Features include relevance-ranked search results, web feeds of query updates, direct citation export, tagging and graphical display of related articles.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.