title: Re: Case-control studies of colorectal cancer mortality: is the case made for screening sigmoidoscopy?
authors.forename: J V
authors.initials: JV
authors.lastname: Selby
authors.forename: G D
authors.initials: GD
authors.lastname: Friedman
authors.forename: P A
authors.initials: PA
authors.lastname: Newcomb
authors.forename: N S
authors.initials: NS
authors.lastname: Weiss
mesh_terms: D016022:Case-Control Studies; D015179:Colorectal Neoplasms / Q000401:mortality* / Q000517:prevention & control; D003362:Cost-Benefit Analysis; D006801:Humans; D012812:Sigmoidoscopy