title: Direct radioimmunoassay of plasma CEA.
mesh_terms: D000230:Adenocarcinoma / Q000276:immunology; D001782:Blood Donors; D002272:Carcinoembryonic Antigen / Q000302:isolation & purification*; D002850:Chromatography, Gel; D005188:False Negative Reactions; D005770:Gastrointestinal Neoplasms / Q000276:immunology; D006801:Humans; D007106:Immune Sera; D007457:Iodine Radioisotopes; D008103:Liver Cirrhosis / Q000276:immunology; D011863:Radioimmunoassay
chemical_list: D002272:Carcinoembryonic Antigen; D007106:Immune Sera; D007457:Iodine Radioisotopes