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February 05, 2010 [posted]
February 12, 2010 [Editor's note added]
April 20, 2010 [Editor's note added]
February 12, 2010 [Editor's note added]
April 20, 2010 [Editor's note added]
PubMed® Subject Subset Strategies Updated for 2010
PubMed subject subset strategies are reviewed each year to determine if modifications are necessary. Modifications may include revisions due to changes in MeSH® vocabulary, adding or deleting terms, and changing parts of a strategy to try to optimize retrieval. The following subset strategies were recently revised:
- Bioethics
- Cancer
- Toxicology
These subset strategies will be updated in the near future:
- Complementary Medicine
- Space Life Sciences
[Editor's Note: The Complementary Medicine subset was updated on February 8, 2010.]
[Editor's Note: The Space Life Sciences subset was updated on April 14, 2010.]
The PubMed Subset Strategies page has information about the subsets.

Nahin AM. PubMed® Subject Subset Strategies Updated for 2010. NLM Tech Bull. 2010 Jan-Feb;(372):e14.