As more evidence emerges that COVID-19 is tied to an increased risk of dangerous blood clots, new research suggests that giving patients blood thinners may improve their odds of survival.

Hospitals are seeing an increase in admissions related to alcohol abuse as recovery centers are shutting down and people are drinking more during the pandemic.

After a week seeing cancer patients with COVID-19 as the inpatient consult attending, Don Dizon finds himself more emotionally exhausted than he's ever been before.

A roundup of the latest news about COVID-19

COVID-19 has led the ESC to transition its annual congress to a virtual format; ESC 2020 Congress 'Challenging Times, Infinite Possibilities' will run online from August 29 to September 1.

These are the coronavirus stories you need to know about today.

Calls to relax social distancing policies emphasize the need for increased testing, but a closer look at current SARS-CoV-2 tests leaves Anish Koka, MD, doubtful that more tests will be the solution.

In the 100 days since the U.S. reported its first coronavirus case, we've had more than 1.2 million cases and 73,000 deaths. But are things getting any better?

Infectious viruses commonly are found in semen, with Zika being one recent notable example. The Chinese researchers noted that 27 different viruses have been detected in human semen.

The ordeal faced by critically ill COVID-19 patients likely won't end even if they pull through and survive their life-threatening infection, experts fear.

Based on a review of more than 1,000 patients who've already sought care for respiratory illnesses since the coronavirus was declared a pandemic in March, researchers at Harvard Medical School are offering up a new list of symptoms to watch out for.

Dr Harpreet Bajaj summarizes the known and unknown links between diabetes and COVID-19, focusing on three clinical questions.

At some point, medical practices will reopen, but it will be anything but business as usual. Here are eight considerations for when it's time to unlock the doors and welcome patients back.

Three physicians describe their impressions of video-based evaluations and things to watch out for.

Researchers report evidence of SARS-CoV-2, which causes COVID-19, in the semen of patients; the data raise the possibility of sexual transmission, but experts say there is no evidence of infectivity.

Learning more about this evolutionary advantage in pangolins may suggest possible treatments for coronavirus in humans, the team said.

Striking differences in how men and women are affected by COVID-19 might be explained by deleterious effects of androgens in males, say Italian researchers.

Dr Aaron Holley warns against following 'false prophets' as we confront treatment decisions for patients with COVID-19.

A roundup of the latest news about COVID-19

Just as an imperfect ruler can measure accurately if its error is constant and known, serology need not have perfect sensitivity and specificity to estimate COVID's prevalence, write Drs Jha and Murthy.

These are the coronavirus stories you need to know about today.

Data from a large US cohort suggest systemic anticoagulation may confer a survival benefit in hospitalized patients without a spike in bleeding events.

Reports of new and unusual symptoms associated with COVID-19 resulted in this week's top trending clinical topic.

Two new reports suggest that the warm summer months will not significantly slow the novel coronavirus as it spreads around the globe.

Americans are reporting high levels of emotional distress from the coronavirus pandemic – levels that some experts warn may lead to national mental health crisis.

The most recent meeting of the PMC Advisory Committee was held at the National Library of Medicine on June 15, 2009. The committee meets at least once a year and its members are appointed by the NIH Director from the biomedical information communities and the general public. Dr. Gary Ward, of the Department of Microbiology & Molecular Genetics at the University of Vermont, has been appointed to serve as Chair of the Committee through January 2011.

For any journal issue that has at least one open access or early access article, PMC is now displaying the table of contents (TOC) in advance of the whole issue becoming available. Not to worry, though—only those articles specified for early release are immediately viewable in PMC. As consistent with the terms of access in the journal agreement, the other articles will only become available on their specified release date, as shown in the TOC below.

The journal's accessiblity, as indicated on the PMC Journal list also has not changed; for example, Plant Physiology's embargo period is still 12 months. What has changed is that the issues with “preview” TOCs now additionally appear on the journal's archive page. Publishers and others can rest assured, however, that no access terms for any journal have been changed with the unveiling of this new format.

Four new members have been appointed to serve on the PMC National Advisory Committee: Mike Rossner of Rockefeller University Press, Jan Fassler of the University of Iowa, Ivy Anderson of the California Digital Library, and Delores Meglio from the Knovel Corporation. Each member will serve a 4-year term. The next meeting of the committee is scheduled for June 4, 2010. For more information on the committee, see PMC National Advisory Committee.

Four new members have been appointed to serve on the PMC National Advisory Committee: Philip Bourne, of the University of California, San Diego; Sophia Colamarino, an independent consultant in San Francisco; Paul Courant, of the University of Michigan; and Patricia Thibodeau, of Duke University. Each member will serve a 4-year term. The next meeting of the committee is scheduled for Friday, June 17, 2011. For more information on the committee, see PMC National Advisory Committee.

The PMC Advisory Committee will hold its annual meeting at the National Library of Medicine on Friday, June 17, 2011 from 9:30 am to 3 pm. Four new committee members will be joining the group, see New Members Appointed to PMC Advisory Committee. Presentations will include discussions relating to the NIH Public Access policy and a viewing of the PMC 10th Anniversary video. For more information, see PMC National Advisory Committee.

A video celebrating PMC's first decade is now available for viewing on the NCBI YouTube Channel. The PMC 10th Anniversary Video can also be found on the regular YouTube site.

The following new members have been appointed to serve on the PMC National Advisory Committee: Martha Bedard, Dean of Libraries at the University of New Mexico; and Lorraine Haricombe, Dean of Libraries at the University of Kansas and a member of SPARC's board. The next meeting of the committee is scheduled for June 19, 2012. For more information, see PMC National Advisory Committee.

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.

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.

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.

The PMC Overview and FAQ have been updated to provide more information on the Scientific Quality Review Process for journals that apply to participate in PMC.

In 2014, PMC implemented a scientific and editorial quality review procedure whereby expert consultants from outside the National Library of Medicine (NLM) conduct an independent review of journals seeking to participate in PMC. This was in response to a significant increase in new publishers and journals applying to participate in PMC, many of which are unknown to NLM in terms of quality and publishing practices. The independent review, which was approved by the PMC National Advisory Committee (see minutes from June 10, 2014), follows an assessment by NLM that the journal meets NLM’s criteria for its collection, as outlined in the Collection Development Manual.

PMC also recently updated the minimum requirement on the number of substantive, peer-reviewed articles needed before a journal can apply to PMC. The new 25-article minimum ensures that the reviewers have a sufficient amount of content on which to base their recommendation for inclusion in PMC. The new minimum article requirement takes effect on January 1, 2016. Publishers are encouraged to use the 25-article minimum as a guideline in the interim when submitting applications.

PMC has reorganized its FTP Service site for users interested in accessing the Text Mining Collections, which include the original Open Access (OA) Subset. New top-level FTP directories help users quickly locate the content available for bulk download that best suits their research needs. These directories include:

• oa_package - article packages for individual OA articles
• oa_pdf – individual PDFs for OA articles
• oa_bulk – bulk packages of text from OA articles
• manuscript – author manuscripts collected under a funding agency’s public access policy
• historical_ocr – select OCR texts from the PMC Back Issue Digitization project

To make it easier for users to identify and comply with the different licenses that apply to OA articles, new file lists have been created and the file lists for individual OA articles now include a “license-type” field for each article. Similarly, the bulk packages of OA article text have been divided into two sets. One set comprises articles that may be used for commercial purposes (the Commercial Use Collection); the other contains articles that can be used only for non-commercial purposes. See the Open Access Subset page for details.

To allow regular users to transition to the new arrangement, the previous arrangement of files and directories will be maintained in parallel for at least four weeks (i.e., until the end of August 2016).

A large-scale update of the file names used for articles available via the PMC FTP service for bulk download was undertaken in early January 2017. The new file naming convention is PMCID-based (e.g., PMC4855680.tar.gz) rather than being built from article citation data (i.e., journal abbreviation_pub date_volume_issue_page). This update was made following user reports that the previous naming convention was resulting in missing contents in cases where citation data was duplicated across multiple articles. The new convention will ensure that file names are unique and that the corpus available via the FTP service is complete.

As we kick off a new year, we wanted to take this opportunity to look back on 2017, which was a milestone year for PMC.

Last year, PMC made nearly half a million articles available for the public to access with the support of participating journals, publisher programs, and research funders. Also, in addition to expanding support for public access to research results and the linking of those results to the underlying dataset(s), PMC released several other policy and resource updates. These include:

1. Clearer statement of scope for PMC (see also the updated entry in the NLM Collection Development Manual for “Journals”);
2. Guidance for journals on reapplying to PMC;
3. Policy statements on the scientific, editorial, and technical standards for PMC (including details on the journal reevaluation process), the supply of back content, the eligibility of non-English language journals, and the maintenance of publishing schedules;
4. Production data requirements for PMC-participating journals; and
5. Major update to the PMC Article Previewer, a tool that allows publishers to see or “preview” how articles will appear in PMC and resolve data problems prior to submission.

In September, NLM recognized the achievements to date in the Wellcome Trust and NLM Biomedical Journal Digitization project, which has added a dozen new historical titles and more than a half million pages to the PMC archive. The PMC archive now includes content from as far back as the late 18th century.

Many thanks all our participants and users for a wonderful year!

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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