title: Screening sigmoidoscopy and colorectal cancer.
authors.forename: W M
authors.initials: WM
authors.lastname: Tierney
mesh_terms: D016022:Case-Control Studies; D015179:Colorectal Neoplasms / Q000401:mortality*; D006801:Humans; D007417:Intestinal Polyps / Q000401:mortality; D012812:Sigmoidoscopy