The Wellcome Trust Cochrane Database of Systematic Reviews Access limited to onsite users.
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. Each issue of COCH contains new and updated reviews and protocols. Because of this, each Review or Protocol includes a section about how to cite that document if needed.