With a free personal account in the CINAHL database you can create alerts that will notify you when new articles appear on your topic!
1) From the CINAHL database sign in/Create a free EBSO account
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2) Enter your search terms and perform a search for your topic
3) In the upper right corner of the results list, click the "Alert/Save/Share" link
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4) This will open up the alert options for this search allowing you to select either Email alerts or an RSS feed
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5) You will now be notified when new citations appear for your search!