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PubMed. PubMed is a free database including primarily the MEDLINE database of references and abstracts on life sciences and biomedical topics. The United States National Library of Medicine (NLM) at the National Institutes of Health maintains the database as part of the Entrez system of information retrieval.
PubMed Central. PubMed Central (PMC) is a free digital repository that archives open access full-text scholarly articles that have been published in biomedical and life sciences journals. As one of the major research databases developed by the National Center for Biotechnology Information (NCBI), PubMed Central is more than a document repository.
The National Center for Biotechnology Information (NCBI) [1][2] is part of the (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The NCBI is located in Bethesda, Maryland, and was founded in 1988 through legislation sponsored by US Congressman Claude Pepper.
The United States National Library of Medicine (NLM), operated by the United States federal government, is the world's largest medical library. [5] Located in Bethesda, Maryland, the NLM is an institute within the National Institutes of Health. Its collections include more than seven million books, journals, technical reports, manuscripts ...
The database is freely accessible on the Internet via the PubMed interface, and new citations are added Tuesday through Saturday. For citations added during 1995-2003, about 48% are for cited articles published in the U.S., about 88% are published in English (overall about 84% [ 9 ] ), and about 76% have English abstracts written by authors of ...
Entrez. The Entrez (IPA: [ɒnˈtreɪ]) [1] Global Query Cross-Database Search System is a federated search engine, or web portal that allows users to search many discrete health sciences databases at the National Center for Biotechnology Information (NCBI) website. [2] The NCBI is a part of the National Library of Medicine (NLM), which is ...
MedlinePlus is an online information service produced by the United States National Library of Medicine. The service provides curated consumer health information in English and Spanish with select content in additional languages. [1][2] The site brings together information from the National Library of Medicine (NLM), the National Institutes of ...
Medical Subject Headings (MeSH) is a comprehensive controlled vocabulary for the purpose of indexing journal articles and books in the life sciences. It serves as a thesaurus that facilitates searching. Created and updated by the United States National Library of Medicine (NLM), it is used by the MEDLINE / PubMed article database and by NLM's ...