title: [Basic problems of CEA as a tumor marker].
mesh_terms: D000911:Antibodies, Monoclonal; D002272:Carcinoembryonic Antigen / Q000032:analysis* / Q000276:immunology; D006801:Humans; D009369:Neoplasms / Q000175:diagnosis*; D011863:Radioimmunoassay / Q000379:methods
chemical_list: D000911:Antibodies, Monoclonal; D002272:Carcinoembryonic Antigen