title: Cancer of the colon and rectum: current concepts of aetiology and pathogenesis.
authors.forename: M J
authors.initials: MJ
authors.lastname: O'Brien
mesh_terms: D000230:Adenocarcinoma / Q000209:etiology; D000328:Adult; D000368:Aged; D002277:Carcinoma / Q000209:etiology; D003110:Colonic Neoplasms / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D012004:Rectal Neoplasms / Q000209:etiology*