The introduction section of the systematic review should be comprehensive and cover all the main elements of the topic under review. The introduction section prepared for the protocol generally makes a good starting point; however, it should not duplicate the introduction in the protocol and will need extension or modification following the review.
The introduction should conclude with the overarching review objective that aligns with the core elements/mnemonic of the inclusion criteria, as it situates the justification and importance of the question(s) posed. For publication in JBI Evidence Synthesis, Vancouver style referencing should be used throughout the review with superscript numbers without brackets used for in-text citations.