Simultaneously searches evidence-based sources of systematic reviews, practice guidelines, and critically-appraised topics and articles. Also searches MEDLINE’s Clinical Queries, medical image databases, e-textbooks, and patient information leaflet.
Filtered resources appraise the quality of studies and often make recommendations for practice.
Systematic Reviews / Meta-Analyses - Authors of a systematic review ask a specific clinical question, perform a comprehensive literature search, eliminate the poorly done studies and attempt to make practice recommendations based on the well-done studies. A meta-analysis is a systematic review that combines all the results of all the studies into a single statistical analysis of results.
Critically-Appraised Topics - Authors of critically-appraised topics evaluate and synthesize multiple research studies.
Unfiltered Resources - Evidence is not always available via filtered resources. Searching the primary literature may be required.
Background Information/Expert Opinion - Evidence in these resources may vary from expert opinion to high levels of evidence.