If you need evidence based and peer-reviewed articles, these are the databases you should use. Try more than one. You may be able to find something in one that you you didn't in another other.
Nursing & Allied Health This is one of the librarians' favorite places to search for nursing articles. Start here!
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MEDLINE w/ Full Text from the National Library of Medicine. Articles from leading medical journals. You may be more familiar with PubMed. It's the same database with a different interface.
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CINAHL Complete contains Nursing and Allied health literature.
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Also remember these sources:
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