title: Proctosigmoidoscopy in asymptomatic men: a 24-month study.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D003110:Colonic Neoplasms / Q000453:epidemiology; D006801:Humans; D007417:Intestinal Polyps / Q000453:epidemiology*; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D011351:Proctoscopy; D012004:Rectal Neoplasms / Q000453:epidemiology; D012812:Sigmoidoscopy