title: Screening for colorectal cancer.
authors.affiliation: Department of Medicine, Yale University, New Haven, Conn.
authors.forename: D F
authors.initials: DF
authors.lastname: Ransohoff
authors.forename: C A
authors.initials: CA
authors.lastname: Lang
mesh_terms: D015179:Colorectal Neoplasms / Q000175:diagnosis / Q000517:prevention & control*; D006801:Humans; D008875:Middle Aged; D009780:Occult Blood; D012812:Sigmoidoscopy