Freedman, David A On the efficacy of screening for breast cancer. [electronic resource] - International journal of epidemiology Feb 2004 - 43-55 p. digital Publication Type: Journal Article; Meta-Analysis; Review ISSN: 0300-5771 Standard No.: 10.1093/ije/dyg275 doi Subjects--Topical Terms: AdultAnalysis of VarianceBiasBreast Neoplasms--diagnostic imagingCause of DeathCluster AnalysisFemaleHumansMammographyMass Screening--methodsMiddle AgedRandomized Controlled Trials as TopicResearch DesignRisk Factors