National Library of Medicine
U.S. National Library of Medicine
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NLM Support Center
What can we help you with?
How do I obtain the full text of an article?
Which agencies and organizations name PMC as the repository for their funded research?
Does NLM have a Z39.50 server for retrieving bibliographic records from LocatorPlus?
What is the PMC Open Access subset? Isn't everything in PMC open access?
I found an error or mistake in PubMed; how do I get it fixed?
What if I can’t access Google accounts from my library?
Can I limit a search to articles that have full text or free full text available?
Reporting Errors in PubMed
What is the difference between PubMed Central (PMC) and PubMed?
Who provides content to PMC and how do I find out if my journal of interest fully participates in PMC?
What happens if a journal ceases its participation in PubMed Central (PMC)? Will the existing articles be removed?
Can I download a batch of articles from PMC for text mining or other purposes?
How do I subscribe to PubMed so that I can access PubMed articles?
Why don't I see the 'Results by year' graph on my PubMed search results page?
How can I get an alert when a new article of my interest has been added to PubMed?
Why don't I find all of my publications when I search your database?
How do I determine who to contact to obtain permission for reproducing either a portion of or an entire PMC article?
I have published under different author names. Can you link all of my articles?
What criteria does NLM use to choose journals for the collection?
How does the PubMed Best Match feature work?
How can I display my library's icon in PubMed?
How are journals selected for MEDLINE?
Why was PubMed's Automatic Term Mapping changed?
How do I find a list of the MEDLINE journal titles?
Are the journals in PubMed peer-reviewed? Where can I find a list of peer-reviewed/refereed journals?
When I do a search in LocatorPlus and choose an individual record, there are different displays. Which MARC fields are displayed for the Holdings and Details displays?
What is a versioned article cited in MEDLINE/PubMed?
How can I identify older medical journal articles?
How can I search PubMed by author?
Can articles supported by NIH grant funds meet the NIH Public Access Policy by submitting content to a third-party repository?
Are journals ever deselected from MEDLINE?
Where do I report problems with links for free full text articles?
Why am I being asked to sign in to access this free article?
How do I find a list of journals in PubMed?
Is Gmail required for using DOCLINE?
Can Google accounts be shared or does everyone need their own Google account for DOCLINE?
Ceased Abstracting and Indexing Publications Containing MEDLINE Citations: Retain or Discard from Collections?
How do I set up or modify my DOCLINE lending email notifications (Lend Alerts)?
What should I do if it says "Permission Denied. You do not have permission to view this page?"
How do I add additional date ranges to my existing Journal Holdings?
Indexing & Cataloging