Heine, John J Full field digital mammography and breast density: comparison of calibrated and noncalibrated measurements. [electronic resource] - Academic radiology Nov 2011 - 1430-6 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1878-4046 Standard No.: 10.1016/j.acra.2011.07.011 doi Subjects--Topical Terms: Breast--anatomy & histologyBreast Neoplasms--diagnostic imagingCalibrationCase-Control StudiesFemaleHormone Replacement TherapyHumansMammography--methodsMiddle AgedObserver VariationRegression AnalysisRetrospective StudiesRisk Factors