title: [Rapid radioimmunoassay method for hCG using protein A-sepharose CL-4 B].
mesh_terms: D001666:Binding Sites, Antibody; D006063:Chorionic Gonadotropin / Q000097:blood*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011863:Radioimmunoassay / Q000379:methods*; D013205:Staphylococcal Protein A
chemical_list: D006063:Chorionic Gonadotropin; D013205:Staphylococcal Protein A