United States National Library of Medicine National Institutes of Health

FAQ
DOCLINE -- Identification of Free Full Text Articles in PubMed

Question: Why aren’t all free full text articles identified in PubMed?
Answer:

"Free full text" links in PubMed are voluntarily supplied and maintained by LinkOut providers or are made available in PubMed Central by information supplied by the publisher or provider. Not all free full text providers participate in LinkOut or provide data to PubMed Central.

Related Questions:
How do I know if a free full text article is available when I am in DOCLINE?
How do I know if the full text of an article cited in PubMed is available free?
Where do I report problems with links for free full text articles?
Why don't I see my LinkOut icons using PubMed via DOCLINE?

Return to the list of DOCLINE FAQs | Return to the list of NLM FAQs
http://www.nlm.nih.gov/services/doc_feat_why_not_all_free_displayed.html

Last reviewed: 17 September 2008
Last updated: 17 September 2008
First published: 24 March 2004
Metadata| Permanence level: Permanence Not Guaranteed