MEDLINE contains citations and abstracts to worldwide biomedical literature including research, clinical practice, administration, policy issues, and healthcare services.
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Date Coverage: 1966-date.
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Tutorial: http://www.screencast.com/users/lottes/folders/Jing/media/a7a0252d-37e8-4b6e-8d59-29f60369ada3
The National Library of Medicine's free article search engine, containing article references from MEDLINE, PreMEDLINE, OLDMEDLINE, plus publisher-supplied and out-of-scope citations from science and chemistry journals.
A research article in a journal normally has the following sections: