Oral Anticoagulation and Stroke in Atrial FibrillationHylek, Elaine M.Go, Alan S.Singer, Daniel E.Author informationMassachusetts General Hospital; Boston, MA 02114 (Hylek, Singer)Kaiser Permanente of Northern California; Oakland, CA 94612 (Go)New England Journal of Medicine 349(24):p 2361, December 11, 2003.Copyright © 2003 Massachusetts Medical Society. All rights reserved.