1. Doppler ultrasonic diagnosis of venous disease;Barnes,1978
2. Noninvasive ultrasonic carotid arteriography: Prospective validation by contrast arteriography;Barnes;Surgery,1976
3. Blackshear, W. M., Phillips, D. J., Thiele, B. L., et al.: Detection of carotid occlusive disease by ultrasonic imaging and pulsed doppler spectrum analysis. Surgery, in press.
4. A prospective evaluation of oculoplethysmography and carotid phonoangiography;Blackshear;Surg. Gynecol. Obstet.,1979
5. Periorbital Doppler velocity evaluation of carotid obstruction;Brockenbrough,1978