title: Understanding and expressing "Risk".
authors: National & Gulf Center for EBHP and Department of Critical Care Medicine, College of Medicine, King Saud Bin Abdulaziz University of Health Sciences, P.O. Box 22490, Mail Code #1413, Riyadh 11426, Saudi Arabia.
authors: Mahmoud
authors: M
authors: Elbarbary
keywords: Clinical effectiveness; Evidence based medicine; Number needed to treat; Odds ratio
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