A systematic review protocol states your rationale, hypothesis, and planned methodology. Members of the team then use the protocol as a guide to conducting the research. It is recommended that you register your systematic review protocol prior to conducting your review. This will improve transparency and reproducibility, but will also ensure that other research teams do not duplicate efforts. A systematic review protocol template and checklist are attached below, as well as a checklist for structured literature reviews that serves as a similar document to a systematic review protocol.
Though not comprehensive, below is a list of registries to consider.