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      Rationale for systematic reviews.

      1
      BMJ (Clinical research ed.)
      BMJ

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          Abstract

          Systematic literature reviews including meta-analyses are invaluable scientific activities. The rationale for such reviews is well established. Health care providers, researchers, and policy makers are inundated with unmanageable amounts of information; they need systematic reviews to efficiently integrate existing information and provide data for rational decision making. Systematic reviews establish whether scientific findings are consistent and can be generalised across populations, settings, and treatment variations, or whether findings vary significantly by particular subsets. Meta-analyses in particular can increase power and precision of estimates of treatment effects and exposure risks. Finally, explicit methods used in systematic reviews limit bias and, hopefully, will improve reliability and accuracy of conclusions.

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          Author and article information

          Journal
          BMJ
          BMJ (Clinical research ed.)
          BMJ
          0959-8138
          0959-8138
          Sep 03 1994
          : 309
          : 6954
          Affiliations
          [1 ] Division of General Medicine, University of Texas Health Science Center, San Antonio 70284.
          Article
          10.1136/bmj.309.6954.597
          2541393
          8086953
          772c16c3-e169-4629-94c9-ad7a9b042420
          History

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