>    Report of meta-analysis must include a complete checklist and flow diagram of PRISMA (Preferred Reporting Items for Meta-Analysis) with the manuscript.

>    Authors must mention in their Materials and Methods section whether a protocol exists for their systematic review.

>    The Editor-In-Chief may request to send a copy of the protocol as supporting information.

>    Authors also have to provide the registry number in the abstract.

>    Steps of meta-analysis

  • Define the Research Question
  • Perform the Literature Search
  • Select the Studies
  • Extract the Data
  • Analyze the Data
  • Report the Results