Guilbeau, J C Chest radiography with a shaped filter at 140 kVp: its diagnostic accuracy compared with that of standard radiographs. [electronic resource] - AJR. American journal of roentgenology May 1988 - 1007-10 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0361-803X Standard No.: 10.2214/ajr.150.5.1007 doi Subjects--Topical Terms: FiltrationHumansROC CurveRadiographic Image Enhancement--methodsRadiography, Thoracic--instrumentation