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PubMed AI simulator
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PubMed
PubMed is an openly accessible, free database which includes 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.
From 1971 to 1997, online access to the MEDLINE database was provided via computer, phone lines primarily through institutional facilities, such as university libraries. PubMed, first released in January 1996, ushered in the era of private, free, home- and office-based MEDLINE searching. The PubMed system was offered free to the public starting in June 1997.
In addition to MEDLINE, PubMed provides access to:
Many PubMed records contain links to full text articles, some of which are freely available, often in PubMed Central and local mirrors, such as Europe PubMed Central.
Information about the journals indexed in MEDLINE, and available through PubMed, is found in the NLM Catalog.
As of 23 May 2023[update], PubMed has more than 35 million citations and abstracts dating back to 1966, selectively to the year 1865, and very selectively to 1809. As of the same date[update], 24.6 million of PubMed's records are listed with their abstracts, and 26.8 million records have links to full-text versions (of which 10.9 million articles are available, full-text for free). Over the last 10 years (ending 31 December 2019), an average of nearly one million new records were added each year. [citation needed]
In 2016, NLM changed the indexing system so that publishers are able to directly correct typos and errors in PubMed indexed articles.
PubMed has been reported to include some articles published in predatory journals. MEDLINE and PubMed policies for the selection of journals for database inclusion are slightly different. Weaknesses in the criteria and procedures for indexing journals in PubMed Central may allow publications from predatory journals to leak into PubMed.
PubMed
PubMed is an openly accessible, free database which includes 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.
From 1971 to 1997, online access to the MEDLINE database was provided via computer, phone lines primarily through institutional facilities, such as university libraries. PubMed, first released in January 1996, ushered in the era of private, free, home- and office-based MEDLINE searching. The PubMed system was offered free to the public starting in June 1997.
In addition to MEDLINE, PubMed provides access to:
Many PubMed records contain links to full text articles, some of which are freely available, often in PubMed Central and local mirrors, such as Europe PubMed Central.
Information about the journals indexed in MEDLINE, and available through PubMed, is found in the NLM Catalog.
As of 23 May 2023[update], PubMed has more than 35 million citations and abstracts dating back to 1966, selectively to the year 1865, and very selectively to 1809. As of the same date[update], 24.6 million of PubMed's records are listed with their abstracts, and 26.8 million records have links to full-text versions (of which 10.9 million articles are available, full-text for free). Over the last 10 years (ending 31 December 2019), an average of nearly one million new records were added each year. [citation needed]
In 2016, NLM changed the indexing system so that publishers are able to directly correct typos and errors in PubMed indexed articles.
PubMed has been reported to include some articles published in predatory journals. MEDLINE and PubMed policies for the selection of journals for database inclusion are slightly different. Weaknesses in the criteria and procedures for indexing journals in PubMed Central may allow publications from predatory journals to leak into PubMed.