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Comment
. 2012 Aug;65(8):915-6.
doi: 10.1016/j.jclinepi.2012.01.015. Epub 2012 May 27.

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

Martin Boeker, Werner Vach, Edith Motschall
Comment

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

Martin Boeker et al. J Clin Epidemiol. 2012 Aug.
No abstract available

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