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Challenges in Systematic Reviews That Evaluate Drug Efficacy or Effectiveness

P. Lina Santaguida, PhD; Mark Helfand, MD, MPH; Parminder Raina, PhD

Annals of Internal Medicine 2005;142:1066-1072. doi:10.7326/0003-4819-142-12 Part 2-200506211-00006

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Annals of Internal Medicine

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