title: Microheterogeneity of HCG reflected in the beta-subunits.
mesh_terms: D001681:Biological Assay; D006063:Chorionic Gonadotropin / Q000032:analysis*; D002850:Chromatography, Gel; D004586:Electrophoresis; D006801:Humans; D007525:Isoelectric Focusing; D009438:Neuraminic Acids / Q000032:analysis
chemical_list: D006063:Chorionic Gonadotropin; D009438:Neuraminic Acids