The North American Symptomatic Carotid Endarterectomy Trial, Surgical Results in 1415 Patients
Stroke 30:1751-1758,1745, Ferguson,G.G.,et al, 1999
Carotid Recurrent Stenosis and Risk of Ipsilateral Stroke, A Systematic Review of the Lit
Stroke 29:244-250, Frericks,H.,et al, 1998