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From the Gale Encyclopedia of Nursing and Allied Health (4th Ed.), this section defines evidence-based practice and provides information about the process from research to implementing practice changes.
As the name suggests, evidence-based medicine (EBM), is about finding evidence and using that evidence to make clinical decisions. A cornerstone of EBM is the hierarchical system of classifying evidence. This hierarchy is known as the levels of evidence.
In CINAHL, look for "Evidence-Based Care Sheets" at the top of the page. Additionally, applying the "Evidence-Based Practice" limiter allows you to limit results to articles from evidence-based practice journals, articles about evidence-based practice, research articles (including systematic reviews, clinical trials, meta analyses, etc.), and commentaries on research studies (applying practice to research).