Silent Cerebral Microemboli Occurring During Carotid Angiography:Frequency as Determined with Doppler Sonography
AJR 161:1037-1040, Dagirmanjian,A.,et al, 1993
Dense Middle Cerebral Artery Sign:An Indicator of Poor Outcome in Middle Cerebral Artery Area Infarction
JNNP 50:1550-1552, Launes,J.&Ketonen,L., 1987