ESC graduate students and faculty with a halftime or greater appointment have access to interlibrary loan services to obtain items we don't have. Articles are usually delivered electronically within 48 hours. Books and media are delivered by UPS, usually within a week. (You will also receive a prepaid envelope to return it.)
You can register and make requests at http://www.esc.edu/ill.
In scholarly/peer reviewed articles:
Some databases have all scholarly material. Others have an option to search for only scholarly/peer-reviewed articles.
To learn how to tell the difference between popular and scholarly articles by looking at them, see Anatomy of a Scholarly Article.
To learn how peer review works, see Peer Review in 5 Minutes.
Note that many nursing journals are not peer reviewed, but editorially reviewed (it's a slight procedural difference but has the same results.) They are still scholarly!