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| NN/LM PNR National Network of Libraries of Medicine Pacific Northwest Region |
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Dragonfly
Spring 2003 -- Volume 34, Number 2 |
by Susan Barnes, Resource Sharing Coordinator
NN/LM Pacific Northwest Region
If you haven't looked at PubMed Central lately, now is a good
time to pay it a visit. This digital archive of peer-reviewed
research articles, editorials and essays has grown substantially
since it began in February, 2000 with just two titles,
Proceedings of the National Academy of Sciences (PNAS)
and Molecular Biology of the Cell. PMC currently
provides free and unrestricted access to full text from more than
160 life sciences journals, with more to come. View the list of
PMC journals -- and access the contents -- at http://pubmedcentral.gov, where
you will also find the list of journals to be added soon.
The currency and start date of free full text in PubMed Central vary by journal. A publisher may make its journal available in PMC immediately after publication, or it may delay release for a specified period. Current PMC journals have delays ranging up to two years, with most releasing their material six months or less after publication. In most cases, publishers that do not immediately release their journals in PMC are balancing the benefits of open access with concerns for preservation of subscription income.
To conduct a simple search of the PMC digital archive, go to http://pubmedcentral.gov, where you will find a search box near the top of the page. At that same location, you can view the table of contents for the most recent available issue of a PMC journal. Just click on a journal name. You can also see a list of all available issues of any title by clicking on its "Archive Starts With" link.
For more complex searches that take full advantage of Entrez capabilities, go to http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PMC -- or avoid the long url by selecting PMC from the Search pulldown menu at the top of the Entrez screen. When you search PMC from this location, you can use Limits, Preview/Index, History, Clipboard, and Details; you can also sort your retrieval and use links to other NCBI databases. You'll find, though, that the ways to limit retrieval, the links, the displays, the sorting abilities, and the behavior of automatic term mapping in PMC are different from PubMed. Consult the PubMed Central Help and FAQ for details.
View articles by clicking on links in the PMC citations. The full text of [PubLink] citations is viewed at publishers' own Web sites. Citations displaying the [Abstract][Full Text][PDF] links point to full text viewed directly from PubMed Central.
Other articles in this series:
Dragonfly, Spring 2003- Volume 34 Number 2
(posted on PNRNews on May 23, 2003)
This publication is funded in whole with Federal funds from the National Library of Medicine, National Institutes of Health, under Contract No. N01-LM-1-3516.
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NN/LM | UW HSL | NN/LM PNR | Contact us: nnlm@u.washington.edu | Revised: August 22, 2003