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The Use of Aspirin for Primary Prevention of Colorectal Cancer: A Systematic Review Prepared for the U.S. Preventive Services Task Force
Catherine DubeĢ, MD, MSc; Alaa Rostom, MD, MSc; Gabriela Lewin, MD; Alexander Tsertsvadze, MD, MSc; Nicholas Barrowman, PhD; Catherine Code, MD; Margaret Sampson, MILS; David Moher, PhD
Annals of Internal Medicine 2007;146:365-375. doi:10.7326/0003-4819-146-5-200703060-00009

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