Linssen, F M The use of narrowband ultrasound for characterization of tissue in a thin layer. [electronic resource] - Physics in medicine and biology Oct 1991 - 1319-30 p. digital Publication Type: Journal Article ISSN: 0031-9155 Standard No.: 10.1088/0031-9155/36/10/002 doi Subjects--Topical Terms: Carotid Arteries--diagnostic imagingHumansUltrasonography--methods