Cochrane Database of Systematic Reviews definition:
A systematic review attempts to identify, appraise and synthesize all the empirical evidence that meets pre-specified eligibility criteria to answer a specific research question.
(Note: Empirical evidence is primarily obtained through observation or experimentation. The observations or experiments are known as primary sources.)
SR Characteristics:
The methods used by the research team must be reproducible and transparent.
SR Reporting guidelines: PRISMA statement (Preferred Reporting Items for Systematic Reviews and Meta-Analyses).
Note. Adapted from Systematic Review Flowchart by Imperial College London Library Services. Retrieved April 25, 2023, from https://www.imperial.ac.uk/media/imperial-college/administration-and-support-services/library/public/Systematic-Review-Flowchart.pdf
Pieper, D., & Rombey, T. (2022). Where to prospectively register a systematic review. Systematic Reviews, 11(1), 8-8. https://doi.org/10.1186/s13643-021-01877-1