title: The next frontier: vascular ultrasound.
authors.forename: Pamela S
authors.initials: PS
authors.lastname: Douglas
mesh_terms: D017408:Guidelines as Topic; D006801:Humans; D012955:Societies, Medical; D018084:Ultrasonography, Interventional / Q000592:standards; D014481:United States; D014652:Vascular Diseases / Q000175:diagnosis