A systematic review is a review of a clearly formulated queston that uses systematic and explicit methods to identify, select, and critically appraise relevant research, and to collect and analyze data from studies that are included in the review. Statistical methods may or may not be used to analyze and summarize the results of the included studies.
1. Search the Cochrane Database of Systematic Reviews
2. Use PubMed Clinical Queries. Alternatively, when running a search in PubMed, go to the "Limits" page, and select "Systematic Review" under "Subsets" limit.
3. If searching CINAHL, limit by publication type (select "Systematic Review").
3. Are the studies consistent, both clinically and statistically?
4. Compare with PRISMA