title: Colorectal cancer: the challenge of early detection.
mesh_terms: D001315:Australia; D003110:Colonic Neoplasms / Q000175:diagnosis* / Q000401:mortality; D006266:Health Education; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis; D009780:Occult Blood; D011230:Precancerous Conditions / Q000175:diagnosis; D012004:Rectal Neoplasms / Q000175:diagnosis* / Q000401:mortality; D012812:Sigmoidoscopy