title: Canadian National Breast Screening Study.
authors.forename: R E
authors.initials: RE
authors.lastname: MacCormick
mesh_terms: D001943:Breast Neoplasms / Q000000981:diagnostic imaging*; D002170:Canada; D005260:Female; D006801:Humans; D008327:Mammography; D008403:Mass Screening; D008875:Middle Aged