3Garcia-Pastor A, Diaz-Otero F, Castano-Garcia B, et al. Transient ischemic attacks: risk factors, duration and neuroimaging in a series of 173 patients. Rev Neurol 2002; 35(2): 107 - 10
4Wong KS, Li H, Chan YL, et al.Use of transcranial Doppler Ultrasound to predict outcome in patients with intracranial large artery occlusive disease[J].Stroke,2000,31:2641～2647.
5Huang YN, Gao S, Li SW, et al.Vascular lesions in Chinese patients with transient ischemic attack[J].Neurology,1997,48:524～525.
6Wong KS, Huang YN, Gao S, et al. Intracranial stenosis in Chinese patients with acute stroke[J].Neurology,1998,50:812～813.
7Zanette EM, Fieschi C, Bozzao L. Comparision of cerebral angiography and transcranial Doppler sonography in acute stroke[J]. Stroke, 1989,20:899～903.
8Gao S, Lam WW, Chan YL,et al. Optimal values of flow velocity on transcranial Doppler in grading middle cerebral artery stenosis in comparision with magnetic resonance angiography [J]. Neuroimaging,2002,12:213～218.
9Dennis M, Bamford J, Sandercock P, et al. Prognosis of transient ischemic attack in the oxford shire community stroke project [J]. Stroke, 1990,21:848～853.
10Caplan LR, Hennerici M. Impaired clearance of emboli(washout) is an important link between hypoperfusion, embolism, and ischemic stroke [J]. Arch Neuro, 1998,55:1475～1482.
