Most of the article citation databases on the Ebscohost platform have the option to limit to the peer reviewed journal literuature. You can limit your search from the main search screen by checking the "Scholarly (Peer Reviewed) Journals" box.
If you forget to limit your search up front, you can limit your search to peer review after the fact. From the Search History/Alerts menu beneath the main search box, click on "edit." A pop up window will display where you can check "Scholarly (Peer Reviewed) Journals."
