1. Noninvasive methods for preoperative assessment of carotid occlusive disease;Sumner;Vasc Diag Ther,1981
2. Detection of carotid occlusive diseases by ultrasonic imaging and pulsed Doppler spectrum analysis;Blackshear;Surgery,1979
3. Noninvasive diagnosis of extracranial carotid arterial disease. A prospective evaluation of pulsed Doppler imaging and oculoplethysmography;Sumner;Arch Surg,1979
4. Comparative review of OPG-K&M, OPPG-G, and pulsed Doppler ultrasound for carotid evaluation;Blackshear;Vasc Diag Ther,1980