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. 2022 Mar 5;22:147. doi: 10.1186/s12909-022-03183-3

Fig. 1.

Fig. 1

Overview of the hierarchical database search and subsequent screening procedure. Screening was performed to delimit studies for meta-analysis of peer-assisted learning in the medical curriculum using the PRISMA protocol; left-hand side of figure illustrating pipeline of articles selected and right-hand of figure the elimination of studies from an initial recovery of ~9100 articles through to the 13 studies selected for this study