Resources used to answer background questions are not what would be used in literature reviews or answering foreground research questions but to help fill out the beginning researcher's knowledge. Essentially, these would NOT be your references, but great places to fill in your knowledge gaps on a topic. Primary goals of these resources are to:
Point of Care tools are for quick reference for busy clinicians, for more, watch this video:
Finding narrative review articles: In Scopus or PubMed, you can click the "review" box under study type to limit results to narrative reviews (see video below). Narrative reviews are different than Systematic or Scoping Reviews because they have no methods (expert opinion).
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Websites are not under peer review, choosing a quality site can be challenging. Lateral reading is an approach to critically review a websites claims by seeing what other sources and websites say about the website in question. This is an instructional video from Arizona State University that sums this up: