A Perspective on Noninvasive Diagnosis of Carotid Disease
Neurol 29:615-622, Ackerman,R.H., 1979
Noninvasive Techniques for Diagnosis of Carotid Artery Disease
Stroke 9:427-429, Sandok,B.A., 1978
Evaluation of Carotid Stenosis by Phonoangiography
NEJM 293:1124, Duncan,G.W.,et al, 1975