Evidence Based Medicine Reviews: Cochrane Database of systematic Reviews  (Ovid)

The Cochrane Database of Systematic Reviews (COCH) 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: Complete reviews - Regularly updated Cochrane Reviews, prepared and maintained by Collaborative Review Groups Protocols - Protocols for reviews currently being prepared. 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.