title: Heterogeneity and specificity of circulating carcinoembryonic antigen.
mesh_terms: D015478:Antigens, Heterophile / Q000032:analysis*; D002272:Carcinoembryonic Antigen / Q000032:analysis*; D000939:Epitopes; D006801:Humans; D009369:Neoplasms / Q000276:immunology
chemical_list: D015478:Antigens, Heterophile; D002272:Carcinoembryonic Antigen; D000939:Epitopes