title: Colonic polyps, occult blood, and chance.
authors.forename: J B
authors.initials: JB
authors.lastname: Simon
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis; D000236:Adenoma / Q000175:diagnosis; D000368:Aged; D003111:Colonic Polyps / Q000175:diagnosis*; D015179:Colorectal Neoplasms / Q000175:diagnosis*; D006801:Humans; D008875:Middle Aged; D009780:Occult Blood