Peltekian, Kevork M Colon cancer screening. [electronic resource] - CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne Mar 2006 - 975; author reply 975-6 p. digital Publication Type: Comment; Letter ISSN: 1488-2329 Standard No.: 10.1503/cmaj.1050228 doi Subjects--Topical Terms: Age FactorsAgedBariumCanadaColonography, Computed TomographicColonoscopy--economicsColorectal Neoplasms--diagnosisCost-Benefit AnalysisEnemaHumansMass Screening--economicsMiddle AgedRisk Factors