Aspirin Use and Colorectal Cancer: Post-Trial Follow-up Data from the Physicians' Health Study.
Sturmer, Til MD, MPH; Glynn, Robert J. ScD, PhD; Lee, I-Min MBBS, ScD; Manson, JoAnn E. MD, DrPH; Buring, Julie E. ScD; Hennekens, Charles H. MD, DrPH
Annals of Internal Medicine.
128(9):713-720, May 1, 1998.
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