Kliewer, M A Percutaneous liver biopsy: a cost-benefit analysis comparing sonographic and CT guidance. [electronic resource] - AJR. American journal of roentgenology Nov 1999 - 1199-202 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0361-803X Standard No.: 10.2214/ajr.173.5.10541088 doi Subjects--Topical Terms: Biopsy, Needle--economicsCost-Benefit AnalysisCosts and Cost AnalysisHumansLiver--pathologySensitivity and SpecificityTomography, X-Ray Computed--economicsUltrasonography--instrumentation