title: Apparent cooperativity in radioimmunoassay of human chorionic gonadotropin.
mesh_terms: D000818:Animals; D006063:Chorionic Gonadotropin / Q000032:analysis*; D002850:Chromatography, Gel; D006168:Guinea Pigs / Q000276:immunology; D006801:Humans; D007106:Immune Sera / Q000378:metabolism; D007140:Immunoglobulin Fab Fragments; D007456:Iodine Isotopes; D010206:Papain; D011485:Protein Binding; D011863:Radioimmunoassay
chemical_list: D006063:Chorionic Gonadotropin; D007106:Immune Sera; D007140:Immunoglobulin Fab Fragments; D007456:Iodine Isotopes; D010206:Papain