Carotid Artery Tandem Lesions:Frequency of Angiographic Detection and Consequences for Endarterectomy
AJNR 20:621-625, Rouleau,P.A.,et al, 1999
The Warfarin-Aspirin Symptomatic Intracranial Disease Study
Neurol 45:1488-1493, Chimowitz,M.I.,et al, 1995