%0 Journal Article %T Duplex Ultrasound and Ocular Pneumoplethysmography Concordance in Detecting Severe Carotid Stenosis %A Castaldo, John E. %A Nicholas, Gary G. %A Gee, William %A Reed, James F. %J Archives of Neurology %V 46 %N 5 %P 518-522 %@ 0003-9942 %D 1989-05-01 %I American Medical Association %~ DeepDyve