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Of studies, summaries, synopses, and systems: the “4S” evolution of services for finding current best evidence
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Conflict of interest statement: Brian Haynes has direct or indirect connections with many of the evidence-based resources used as examples above, including ACP Journal Club (editor), Evidence-Based Medicine (co-editor), Cochrane Library (reviewer and former board member and Cochrane Centre director), Clinical Evidence (advisory board), and PubMed Clinical Queries (developer). These resources are used to illustrate the concepts in the paper; there are other, and perhaps better, examples.
A previous version of this editorial was published in OpenUrlPubMed and OpenUrlFREE Full Text