title: Two-year follow-up study of patients with known serum concentrations of carcinoembryonic antigen.
mesh_terms: D002272:Carcinoembryonic Antigen / Q000032:analysis*; D003110:Colonic Neoplasms / Q000175:diagnosis*; D005500:Follow-Up Studies; D006801:Humans; D011379:Prognosis; D012004:Rectal Neoplasms / Q000175:diagnosis*
chemical_list: D002272:Carcinoembryonic Antigen