Some of our databases and search engines will allow you to limit results to peer-reviewed publications.
Use the Search the Library tool to find articles and limit results to peer-reviewed journals. To limit, search for a topic or title and use the filter to the left, Peer-reviewed Journals, of the search results list.
In CINAHL, and other databases available through the EBSCO interface, click on the "Show More" link in the left-hand column. A new window with additional filters will open. Put a checkmark in the box marked "Peer Reviewed."
Unfortunately, PubMed, Scopus, and databases available through the Ovid interface (including MEDLINE) do not have an option to limit to peer-reviewed publications, although you can limit to specific types of publications such as clinical trials, systematic reviews, etc.