Before embarking on a scoping review,
1) Make sure that a recent scoping or systematic review on the same topic has not already been published, and
2) Check for protocols that would indicate similar work is in progress. Protocols can be registered and/or published.
To check for published reviews, search journal databases such as MEDLINE/PubMed, Embase, CINAHL, and even Google Scholar (to catch any journal content that is not covered in bibliographic databases). You can also check Epistemonikos (an open source database of health evidence), Campbell Collaboration (systematic reviews on effectiveness of social interventions), FigShare, OSF (research repositories) or MedRXiv (a preprint server). Journals that publish scoping review protocols include BMJ Open and Systematic Reviews, among others. Registries include the JBI Review Registry.
You should consider registering and/or publishing your own Scoping Review Protocol once you've established your Plan.
