Evidence synthesis reviews (e.g. systematic reviews) require a significant amount of time and resources.
At minimum, take the following into consideration:
Review this guidance from the Library of Rush University Medical Center for a checklist of questions to be considered before undertaking a systematic review or other evidence synthesis project.
Evidence synthesis reviews should only be done if no existing review addresses your research question.
Ensure you check the following resources to confirm no protocols (statements of planned reviews) or published reviews exist:
Reference: Systematic Reviews by Lydia Thorne at University of Ontario Institute of Technology