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Semantically equivalent PubMed and Ovid-MEDLINE queries: different retrieval results because of database subset inclusion.

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Bibliographic Details
Title: Semantically equivalent PubMed and Ovid-MEDLINE queries: different retrieval results because of database subset inclusion.
Authors: Boeker M (AUTHOR), Vach W (AUTHOR), Motschall E (AUTHOR)
Source: Journal of Clinical Epidemiology. Aug2012, Vol. 65 Issue 8, p915-916. 2p.
Database: Academic Search Ultimate
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