Systematic Review Overview (George Washington University)
Systematic Review Process (University of Newcastle)
What makes a good systematic review and meta-analysis?
How to Write a Cochrane Systematic Review
Cochrane Handbook for Systematic Reviews of Interventions
The Cochrane Database of Systematic Reviews
Summary: A collection of regularly updated, systematic reviews of the effects of health care. New reviews are added with each issue of The Cochrane Library. Reviews mainly of randomised controlled trials. Evidence is included or excluded on the basis of explicit quality criteria to minimise bias. Data are often combined statistically, with meta-analysis, to increase the power of the findings of numerous studies each too small to produce reliable results individually.