Preferred Reporting Items for Systematic review and Meta-Analysis Protocol(English)

• detailed, well-described protocols can facilitate the understanding and appraisal of the review methods, as well as the detection of modifications to methods and selective reporting in completed reviews
• IOM, PRISMA, COMP, PROSPERO
• Meta-analysis, Guidelines
• https://doi.org…6/2046-4053-4-1
• https://doi.org….1136/bmj.g7647