Multivitamin Use, Folate, and Colon Cancer in Women in the Nurses' Health Study.
Giovannucci, Edward MD, ScD; Stampfer, Meir J. MD, DrPH; Colditz, Graham A. MD, DrPH; Hunter, David J. MBBS, ScD; Fuchs, Charles MD, MPH; Rosner, Bernard A. PhD; Speizer, Frank E. MD; Willett, Walter C. MD, DrPH
Annals of Internal Medicine.
129(7):517-524, October 1, 1998.
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