title: Early diagnosis of colorectal cancer.
authors.forename: F W
authors.initials: FW
authors.lastname: Poon
mesh_terms: D001466:Barium Sulfate; D003110:Colonic Neoplasms / Q000175:diagnosis*; D003113:Colonoscopy; D004733:Enema; D006801:Humans; D012004:Rectal Neoplasms / Q000175:diagnosis*
chemical_list: D001466:Barium Sulfate