title: [125I]protein A: a tracer for general use in immunoassay.
mesh_terms: D001666:Binding Sites, Antibody; D006063:Chorionic Gonadotropin / Q000032:analysis; D006801:Humans; D007118:Immunoassay / Q000379:methods*; D007075:Immunoglobulin M / Q000032:analysis; D007700:Kinetics; D013045:Species Specificity; D013205:Staphylococcal Protein A
chemical_list: D006063:Chorionic Gonadotropin; D007075:Immunoglobulin M; D013205:Staphylococcal Protein A