title: Letter by Powers Regarding Article, "Failure of cerebral hemodynamic selection in general or of specific positron emission tomography methodology? Carotid occlusion surgery study (COSS)".
authors.forename: William J
authors.initials: WJ
authors.lastname: Powers
mesh_terms: D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging / Q000503:physiopathology; D016893:Carotid Stenosis / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy; D002560:Cerebrovascular Circulation; D006439:Hemodynamics; D006801:Humans; D049268:Positron-Emission Tomography; D011859:Radiography