• Stroke prevention: Age alone does not rule out warfarin 

    Schumann, Sarah-Anne; Ewigman, Bernard (Family Physicians Inquiries Network, 2007-11)
    Warfarin is as safe as aspirin and more effective for stroke prevention in elders with atrial fibrillation. Strength of recommendation (SOR) A: Well-designed randomized controlled trial of elderly patients in the primary ...