-from Wiley InterScience
Includes the full text of the regularly updated systematic reviews of the effects of healthcare prepared by The Cochrane Collaboration. The reviews are presented in two types: 1) Complete reviews - Regularly updated Cochrane Reviews, prepared and maintained by Collaborative Review Groups 2) Protocols - Protocols for reviews currently being prepared (all include an expected date of completion). Protocols are the background, objectives and methods of reviews in preparation.
COCH is produced by the Cochrane Collaboration - an international network of individuals and institutions committed to preparing, maintaining, and disseminating systematic reviews of the effects of health care. In pursuing its aims, the Cochrane Collaboration is guided by six principles: collaboration, building on people's existing enthusiasm and interests, minimizing duplication of effort, avoidance of bias, keeping up to date, and ensuring access.
Reflecting the current practice in medicine to base clinical decisions on accumulated evidence from the primary medical literature, Ovid has created a collection of resources called Evidence-Based Medicine Reviews which is designed for use by clinicians, researchers and students. The Cochrane Database of Systematic Reviews is one of the databases in Ovid's evidence-based medicine collection, which also includes the Database of Abstracts of Reviews of Effectiveness (DARE) and Best Evidence (which consists of ACP Journal Club from the American College of Physicians-American Society for Internal Medicine [ACP-ASIM] and Evidence Based Medicine from the BMJ Publishing Group).
In Medline a limit to Evidence-Based Medicine Reviews will restrict your retrieval to those articles or studies that have been included by the Cochrane Collaboration when creating a Topic Review or articles that have been reviewed in the ACP Journal Club or BMJ Evidence-Based Medicine publications or in the Database of Abstracts of Reviews of Effectiveness (DARE). By their inclusion in these publications, these studies have met strict Evidence-Based Medicine criteria. Use this limit to narrow a large search to only those articles or studies which are considered "Evidence-Based" by experts and for which an article or topic review exists.
Holdings: 1991 to the present. Updated quarterly.
-from Wiley InterScience
CCTR is a bibliographic database of definitive controlled trials. These controlled trials have been identified by the distinguished contributors to the Cochrane Collaboration. They and others, as part of an international effort to systematically search the world's health care journals (and other sources of information), have combined results to create an unbiased source of data for systematic reviews. Because it has been shown that existing bibliographic databases are inadequate for the identification of all relevant studies, the Cochrane Collaboration embarked upon this formidable task in co-operation with the National Library of Medicine (NLM) in Washington, DC (USA) who produce MEDLINE and Reed Elsevier of Amsterdam (the Netherlands) who produce EMBASE.