PubMed
PubMed
The premier database of biomedical literature from the US National Library of Medicine. PubMed provides free access to citations and abstracts from MEDLINE and other life science journals.
pubmed.ncbi.nlm.nih.govFrequently Asked Questions about PubMed
What is PubMed?
PubMed is a free search engine accessing the MEDLINE database of biomedical literature, maintained by the National Center for Biotechnology Information (NCBI) at the US National Library of Medicine.
Is PubMed free to use?
Yes, PubMed is freely accessible. While abstracts are always free, full-text access depends on journal policies and subscriptions.
What does PubMed include?
PubMed contains over 35 million citations from biomedical journals, including MEDLINE indexed journals and additional life science publications.
How do I search PubMed effectively?
Use MeSH terms, Boolean operators (AND, OR, NOT), filters for publication date and article type, and quotation marks for exact phrases to refine searches.
What is PubMed Central?
PubMed Central (PMC) is a free archive of full-text biomedical articles, separate from PubMed but linked to it.
Can I save searches in PubMed?
Yes, with a free NCBI account you can save searches, create alerts for new results, and save collections of articles.
Does PubMed include preprints?
PubMed now includes preprints from sources like medRxiv and bioRxiv, clearly labelled as not peer-reviewed.
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