PubMed Central (PMC)

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PubMed Central is a free digital archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health (NIH), developed and managed by NIH's National Center for Biotechnology Information (NCBI) in the National Library of Medicine (NLM).

Participation by publishers in PubMed Central (PMC) is voluntary, although participating journals must meet certain editorial standards. Journals are encouraged to deposit all their content (and not just research papers or other selected material) in PMC so that the archive becomes a true digital counterpart to NLM's extensive collection of print journals. In line with this objective, NLM is digitizing earlier print issues of many of the journals already in PMC. Although immediate free access to all content is most desirable, a journal may delay release of its full text in PMC for some period of time after publication. See the Deposit and Access Policies for more information.

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