NCBI has developed a new web presentation style called PubReader, which offers you an easier way to use your Web browser to read the articles in PMC. Designed particularly for enhancing readability and navigation on tablet and other small screen devices, PubReader can also be used on desktops and laptops and from multiple web browsers. For more information on PubReader, see the article in the November-December issue of the NLM Technical Bulletin.

As of February 1, 2013, the following new members have been appointed to serve on the PMC National Advisory Committee: Ms. Sharon Terry of the Genetic Alliance; Dr. C. Victor Jongneel of the University of Illinois at Urbana-Champaign; Dr. Bevin Engelward of the Massachusetts Institute of Technology; Dr. Randall Morse of the Wadsworth Center; and Dr. Adelita Cantu of the University of Texas. For more information, see PMC National Advisory Committee.

KoreaMed Synapse, a digital archive and reference linking platform of Korean medical journals, is now using NCBI’s new PubReader presentation style to display their full-text journal articles. KoreaMed’s database of 122 journals now includes a blue ‘PubReader’ icon for each full-text article. NCBI launched PubReader in December 2012 as a convenient new way to view full-text articles in PubMed Central on desktops as well as tablets and mobile devices. In tandem with the launch, NCBI made the code used to create PubReader freely available on GitHub.

PMC is pleased to announce the new OA web service, designed to allow tool developers an easier way to find content in the PMC open access subset. Until now, it has not been easy for outside users to determine which articles in the subset are new or have been updated recently. Our new OA web service addresses this need. It provides a simple API to allow you to query the subset, to find PDF or tgz (tarred-gzipped) format files, either by article ID, or by date/time ranges. More information, along with examples, is available from the documentation page, at OA Web Service. Your feedback is welcome; please send it to the PMC Help Desk, at pubmedcentral@ncbi.nlm.nih.gov.

You can now search for Open Access articles that have certain types of licenses, by using special filters in both PMC and PubMed. These filters are based on license information that is provided to PMC by publishers and other content providers, as encoded by machine-readable identifiers in the source XML of each article. For more information, see our updated Open Access Subset page.

This year's PMC Advisory Committee meeting will be held on Tuesday, June 10. The meeting will take place in the NLM Board room starting at 9:30 am. Stay tuned for further details.

PMC is happy to announce the addition of a citation exporter feature. This feature makes it easy to retrieve either styled citations that you can copy/paste into your manuscripts, or to download them into a format compatible with your bibliographic reference manager software.

When viewing an Entrez search results page, each result summary will now include a "Citation" link. When, clicked, this will open a pop-up window that you can use to easily copy/paste citations formatted in one of three popular styles: AMA (American Medical Association), MLA (Modern Language Association), or APA (American Psychological Association). In addition, the box has links at the bottom that can be used to download the citation information in one of three machine-readable formats, which most bibliographic reference management software can import.

The same citation box can also be invoked from an individual article, either in classic view (with the "Citation" link among the list of formats) or the PubReader view, by clicking on the citation information just below the article title in the banner.

These human-readable styled citations, and machine-readable formats, will be available through a public API, and we will be providing more details about that in another announcement, on the pmc-utils-announce mailing list. Please subscribe to that list if you are interested.

In order to facilitate text and data mining for articles in the Open Access Subset, we are now providing plain text files for those articles on our FTP site. These files contain the full text of the article, extracted either from the XML source files, or (for those articles that don't have XML) the PDF files. Users are directly and solely responsible for compliance with copyright restrictions and are expected to adhere to the terms and conditions defined by the copyright holder (see the PMC Copyright Notice).

These text files are bundled in gzipped archives. Note that these files are quite large (each greater than one gigabyte). They are available for download as:

• ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/articles.txt.0-9A-B.tar.gz
• ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/articles.txt.C-H.tar.gz
• ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/articles.txt.I-N.tar.gz
• ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/articles.txt.O-Z.tar.gz

These files are updated every week, on Saturday.

For more information, see the Bulk Packages of OA Articles section of our FTP Service page.

NIH-supported scientists have made over 300,000 author manuscripts available in PMC. Now NIH is making these papers accessible to the public in a format that will allow robust text analyses.

You can download the PMC collection of NIH-supported author manuscripts as a package in either XML or plain-text format at ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/manuscript/. The collection encompasses all NIH manuscripts posted to PMC that were published in July 2008 or later. While the public can access the manuscripts’ full text and accompanying figures, tables, and multimedia via the PMC website, the newly available XML and plain-text files include full text only. In addition to text mining, the files may be used consistent with the principles of fair use under copyright law.

Please note that these author manuscript files are not part of the PMC Open Access Subset.

The NIH Office of Extramural Research developed this resource to increase the impact of NIH funding. Through this collection, scientists will be able to analyze these manuscripts, further apply NIH research findings, and generate new discoveries.

For more information, please visit the PMC author manuscript collection webpage.

Since March 2016, the NIH Manuscript Submission (NIHMS) system has added support for researchers from the following federal agencies to deposit in PMC any manuscripts that fall under the agency’s public access policy:

• Assistant Secretary for Preparedness and Response (ASPR/HHS; intramural only at this time)
• Environmental Protection Agency (EPA; intramural only at this time)
• National Aeronautics and Space Administration (NASA; intramural/civil servants and grantees)

Manuscript deposit support for all Administration for Community Living (ACL/HHS) researchers will be available in NIHMS by October 2017 and for Department of Homeland Security researchers in early 2018.

Additionally, the Bill & Melinda Gates Foundation Open Access Policy now requires their grantees to make their published research results available in PMC immediately upon publication under a Creative Commons Attribution (CC-BY) license. Manuscript deposit support is not provided in NIHMS for Gates-funded researchers; rather the final published version of any Gates-funded article is to be deposited directly to PMC by the publisher or a funder-supported data provider without author involvement. More information on this open access policy is available on the Gates Foundation website.

PMC will continue to update the list of participating funding agencies at Public Access and PMC as support is implemented.

PMC has released expanded information about its selection process for journals that apply for participation. The current review process has been in place since November 2014 and focuses on the scientific rigor and editorial quality of each journal that applies to participate in PMC. Some of the attributes taken into account as part of this process include the article content, journal policies, language quality, and presentation of content. The same assessment considerations are used for reevaluation of currently participating journals. We encourage you to visit the Journal Selection for PMC page to learn more.

Publishers and journals interested in submitting an application to PMC are also encouraged to review our updated policies on agreement types. These policies provide the eligibility criteria for each type of participation agreement and should be considered alongside the pre-application requirements.

We hope these updates are informative and look forward to hearing your feedback.

Machine-readability of scholarly outputs is critical to supporting large-scale analysis of the scientific literature. To that end, PMC’s Tagging Guidelines and internal processes have been updated to support the JATS4R recommendations for tagging clinical trial information. NLM encourages PMC-participating publishers, journals, and data providers to review this guidance. Please contact us at pubmedcentral@ncbi.nlm.nih.gov if you have any questions.

PMC has updated the Associated Data box to display unique identifiers assigned to supplemental material files by the publisher when available (e.g., DOI; see PMC6351104). In cases where the publisher has not assigned a unique ID to a supplemental file, NLM will generate and display a Globally Unique Identifier (GUID; see PMC6351564). This update aims to support the reporting of datasets as well as the citation and discovery of this content.

Publishers that are interested in supplying unique IDs for supplemental material files with their PMC submissions should visit the Tagging Guidelines.

Peer review documents, including review reports and editor decision letters, are increasingly being published along with the articles they review. This practice is intended to make the publishing process more transparent. To support these efforts, PMC’s Tagging Guidelines have been updated to include the tagging of peer review documents. NLM encourages PMC-participating publishers, journals, and data providers to review this guidance. Please contact us at pubmedcentral@ncbi.nlm.nih.gov if you have any questions.

On March 13, 2020, the National Science and Technology Advisors from a dozen countries, including the United States, called on publishers to voluntarily agree to make their COVID-19 and coronavirus-related publications and associated data immediately accessible in PubMed Central (PMC) and other appropriate public repositories to support the ongoing public health emergency response efforts.

For more information on which publishers have responded to this call and how to discover COVID-19 and coronavirus-related publications in PMC, see the main COVID-19 Initiative page.

A FAQ is also available. If you have questions not addressed in the FAQ, please contact pmc-phe@ncbi.nlm.nih.gov.

You can learn more about how this initiative fits into the wider NLM response to the current public health emergency in Dr. Patti Brennan's post, "How Does a Library Respond to a Global Crisis?"

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