PubReMiner is an interesting tool that lets you see the metadata behind your PubMed search, and lets you narrow your search with quite a bit more understanding of the ways in which you can do so.
This was included as part of a list on Journalology
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Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.Libology Blog
Established July 2006
ISSN: 1946-1852
by Rick Mason