title: Screening sigmoidoscopy for colorectal cancer.
authors.affiliation: Division of Research, Kaiser Permanente, Oakland, CA.
authors.forename: J V
authors.initials: JV
authors.lastname: Selby
mesh_terms: D015179:Colorectal Neoplasms / Q000517:prevention & control*; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D012812:Sigmoidoscopy; D013997:Time Factors