1Salonen JT,Salonen R.Ultrasound B-mode imaging in observational studies of atherosclerotic progression[J].Circulation,1993,87(3 Suppl):56-65.
2Alfonso F,Macaya C,Goicolea J,et al.Intravascular Ultrasound imaging of angiographically normal coronary segment in pationts with coronary artery disease[J].Am Heart J,1994,127:536-544.
4Fortea A M, Babikian VL, Hyde C, et al. Effect of time and cerebrovascular symptoms on the prevalence of microembdic signals in patients with cervical carotid stenosis[J]. Stroke,1996,27:687-690.