Hoksbergen, A W Success rate of transcranial color-coded duplex ultrasonography in visualizing the basal cerebral arteries in vascular patients over 60 years of age. [electronic resource] - Stroke Jul 1999 - 1450-5 p. digital Publication Type: Journal Article ISSN: 0039-2499 Standard No.: 10.1161/01.str.30.7.1450 doi Subjects--Topical Terms: AgedBasilar Artery--diagnostic imagingBlood Flow VelocityCerebral Arteries--diagnostic imagingCerebrovascular CirculationFemaleHumansIntracranial Arteriosclerosis--diagnostic imagingMaleMiddle AgedSex FactorsUltrasonography, Doppler, ColorUltrasonography, Doppler, TranscranialVertebral Artery--diagnostic imaging