The flow diagram depicts the flow of information through the different phases of a systematic review. It shows the number of records identified, included and excluded, and the reasons for exclusions.
Here is a template of the PRISMA flow diagram.
We recommend that you use the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement for reporting all of your systematic review methodology. It has a checklist for all of the items to include in your publication.
For a narrative synthesis, see the Synthesis Without Meta-analysis (SWiM) Guideline and its nine item checklist.