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PubMed® comprises more than 37 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 sites.
One of the most widely used interfaces for the retrieval of information from biological databases is the NCBI Entrez system. Entrez capitalizes on the fact that there are pre-existing, logical relationships between the individual entries found in numerous public databases.
PubMed Central ® (PMC) is a free full-text archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine (NIH/NLM)
Entrez is a molecular biology database system that provides integrated access to nucleotide and protein sequence data, gene-centered and genomic mapping information, 3D structure data, PubMed MEDLINE, and more.
MeSH (Medical Subject Headings) is the NLM controlled vocabulary thesaurus used for indexing articles for PubMed.
20 gen 2006 · A complete list of Entrez (PubMed) stopwords is given in the PubMed Guide. Punctuation in search terms is also typically ignored by Entrez and can cause certain strings to be missed. Enclosing problematic terms in quotes can help.
29 mag 2009 · See the PubMed or Entrez help for information about search field descriptions and tags. Search fields and tags are database specific. esearch.fcgi?db=pubmed&term=asthma
The E-utilities are the public API to the NCBI Entrez system and allow access to all Entrez databases including PubMed, PMC, Gene, Nuccore and Protein. The E-utilities are a suite of eight server-side programs that accept a fixed URL syntax for search, link and retrieval operations.
PubMed. A comprehensive electronic archive of the peer-reviewed literature relevant to the biological sciences that provides access to over 10 million citations. The PubMed search system provides access to the PubMed database of bibliographic information, which is drawn primarily from MEDLINE and PREMEDLINE.
1 gen 2005 · Entrez Gene provides unique integer identifiers for genes and other loci for a subset of model organisms. It tracks those identifiers, and is integrated with the Entrez system for interactive query, LinkOuts, and access by E-utilities ( 1).
