PMC is a repository of content from two sources: journals that overall have met NLM’s standards for PMC; and author manuscripts deposited in compliance with the public access policy of NIH or other collaborating funders. PMC is not a publisher and does not publish journal articles itself.
Once a journal as a whole has been accepted for inclusion in PMC, NLM does not judge the quality of individual articles and relies on the scientific publishing process to identify and address problems through published comments, corrections, and retractions. The presence of an article in PMC does not reflect an endorsement of, or concurrence with, the contents of the article by NLM.
NIH and other funders do not dictate the journals in which their funded authors may publish. Consequently, author manuscripts in PMC may be from journals that have not yet undergone scientific review by NLM, are traditionally out of scope for the NLM collection, or have not met NLM’s standards for PMC.
If you have concerns about a specific article (e.g., possible plagiarism, point of view expressed), NLM encourages you to notify the PMC helpdesk, as well as the editors and publisher of the journal.
Please also refer to PMC’s policy on retractions.
For documents and software available from this server, the U.S. Government does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed.
NCBI does not endorse or recommend any commercial products, processes, or services. The views and opinions of authors expressed on NCBI's Web sites do not necessarily state or reflect those of the U.S. Government, and they may not be used for advertising or product endorsement purposes.
When visiting our Web site, your Web browser may produce pop-up advertisements. These advertisements were most likely produced by other Web sites you visited or by third party software installed on your computer. The NLM does not endorse or recommend products or services for which you may view a pop-up advertisement on your computer screen while visiting our site.
It is not the intention of NLM to provide specific medical advice but rather to provide users with information to better understand their health and their diagnosed disorders. Specific medical advice will not be provided, and NLM urges you to consult with a qualified physician for diagnosis and for answers to your personal questions.
Last updated: Fri, 13 Mar 2015