title: Screening sigmoidoscopy and colorectal cancer mortality.
authors.forename: J V
authors.initials: JV
authors.lastname: Selby
authors.forename: G D
authors.initials: GD
authors.lastname: Friedman
mesh_terms: D015179:Colorectal Neoplasms / Q000401:mortality*; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D012812:Sigmoidoscopy