Comparison of Warfarin and Aspirin for Symptomatic Intracranial Arterial StenosisNEJM 352:1305-1316, 1368, Chimowitz,M.I.,et al, 2005
Atrial Fibrillation and StrokeStroke 32:803-808, Hart,R.G. &Halperin,J.L., 2001