OVID Cochrane TutorialCochrane Database of Systematic Reviews - produced by Cochrane Collaboration
These reviews allow clinicians to get fast, "bottom line" answers to their most commonly-asked questions, based on a comprehensive and expert analysis of the available medical literature. Includes links to PDFs of the Topic Reviews, the Cochrane Database of Methodology Reviews (CDMR), full-text methodology reviews that summarize the empirical basis for decisions about methods in systematic reviews (includes complete reviews and protocols).