Read the PRISMA Statement

Captured from http://www.prisma-statement.org/
Accessed: 09/05/2018

In 2009, a group of systematic review experts developed a revised set of standards for reporting systematic reviews and meta-analyses and published the PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses) Statement. PRISMA contains a 27 item checklist and a flow diagram, all created to improve the way researchers report systematic reviews and meta-analysis. You can read the PRISMA statement here.