<P> PRISMA (Preferred Reporting Items for Systematic Reviews and Meta - Analyses) is an evidence - based minimum set of items aimed at helping authors to report a wide array of systematic reviews and meta - analyses that assess the benefits and harms of a health care intervention . PRISMA focuses on ways in which authors can ensure a transparent and complete reporting of this type of research . The PRISMA standard supersedes the QUOROM standard . </P> <P> The aim of the PRISMA statement is to help authors improve the reporting of systematic reviews and meta - analyses . PRISMA has mainly focused on systematic reviews and meta - analysis of randomized trials, but it can also be used as a basis for reporting reviews of other types of research (e.g., diagnostic studies, observational studies). PRISMA is not a quality assessment instrument for systematic reviews but it may be useful for critical appraisal purposes . </P>

Preferred reporting items for systematic reviews and meta-analyses
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