In recent decades, the 'evidence-based medicine' movement has become widely accepted and, consequently, decisions regarding what is best practice are informed by the best available evidence1. However, an ever-increasing quantity of evidence published in literature has meant that healthcare providers, researchers, and policymakers are inundated with unmanageable amounts of information, which can hinder, rather than inform, rational decision making2. It is therefore vital that healthcare professionals, including pharmacists, appreciate the importance of evaluating the available evidence when attempting to answer a clinical question3. A literature review can therefore be considered "the comprehensive study and interpretation of literature that relates to a particular topic".
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