title: Unclear methods in estimate of screening effect in women ages 40 to 49 years.
authors.forename: Karsten Juhl
authors.initials: KJ
authors.lastname: Jørgensen
authors.forename: Peter C
authors.initials: PC
authors.lastname: Gyøtzsche
mesh_terms: D001943:Breast Neoplasms / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008327:Mammography; D008403:Mass Screening