I couldn't find anything earlier in my collection. I have a copy of Standness and Sumner's 1975 monograph called "Ultrasonic Techniques in Angiology". It predates duplex but discusses carotid hemodynamic investigation. Let me know if you need anything pre-Duplex. Obi-Wan KeStevo On Jan 31, 2017 7:23 PM, "Ann Marie Kupinski" <[log in to unmask]> wrote: Hi folks, I have a question for the historians of the group. I am looking to find the first publication from Dr. Strandness and colleagues that presented their ultrasound criteria for carotid stenosis. This is what I could find. Fell G, Phillips DJ, Chikos PM, Harley JD, Thiele BL and Strandness DE. Ultrasonic Duplex Scanning for Disease of the Carotid Artery. Circulation 64: 1191-1195, 1981. Can anyone confirm if this is it or is there an earlier publication from these pioneers at UW. Thanks Ann Marie Kupinski To unsubscribe or search other topics on UVM Flownet link to: http://list.uvm.edu/archives/uvmflownet.html To unsubscribe or search other topics on UVM Flownet link to: http://list.uvm.edu/archives/uvmflownet.html