“…650,662,663 When there is angiographic evidence of thrombus at the origin or extracranial portion of the vertebral artery, anticoagulation is generally recommended for at least e100 Circulation July 26, 2011 3 months, whether or not thrombolytic therapy is used initially. 662,664 -666 The WASID (Warfarin versus Aspirin for Symptomatic Intracranial Disease) trial found aspirin and warfarin to be equally efficacious after initial noncardioembolic ischemic stroke.…”