title: Heterogeneity of carcinoembryonic antigen (CEA) in human serum.
mesh_terms: D002272:Carcinoembryonic Antigen / Q000302:isolation & purification*; D002850:Chromatography, Gel; D006801:Humans; D008970:Molecular Weight; D009369:Neoplasms / Q000276:immunology; D011863:Radioimmunoassay
chemical_list: D002272:Carcinoembryonic Antigen