The Cochrane Database of Systematic Reviews contains full text articles, as well as protocols focusing on the effects of healthcare. The reviews are highly structured and systematic, with evidence included or excluded on the basis of explicit quality criteria, to minimize bias.
Citations and abstracts of published systematic reviews on the effects of health care from around the world. Provides access to quality reviews in subjects for which a Cochrane Review may not yet exist. Note: Provides the full-text of the critical review about the systematic review (original full-text systematic review is not in this database)