4Espeland,M A,Tang R,Terry J G,et al.Associations of risk factors with segment-specific intimal-medial thickness of the extracranial carotid artery.Stroke.1999,30,1047-1055.
5European Carotid Surgery Trialists collaborative group. MRC European carotid trial: Interim result for symptomatic patients with severe (70%～99%) or with mild (0%～29%) carotid stenosis. Lancet, 1991, 337: 1 235-243
2Wijnhoud AD, Koudstaal PJ, Dippel DW. Relationships of transcranial blood flow Doppler parameters with major vascular risk factors: TCD study in patients with a recent TIA or nondisabling ischemic stroke. Clin Ultrasound, 2006,34:70-76.
